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Adata Legend 840 SSD 512GB M.2 NVMe PCI Express 4.0 ALEG-840-512GCS
SSD Hard Drives

Adata Legend 840 SSD 512GB M.2 NVMe PCI Express 4.0 ALEG-840-512GCS

The Adata Legend 840 SSD 512GB is a powerful and efficient storage unit that uses the M.2 NVMe PCI Express 4.0 connection. With a capacity of 512GB, it offers ample space for storing data,...

The Adata Legend 840 SSD 512GB is a powerful and efficient storage unit that uses the M.2 NVMe PCI Express 4.0 connection. With a capacity of 512GB, it offers ample space for storing data, applications, and games, while the PCIe 4.0 technology ensures high data transfer speeds, reducing loading times and improving overall system performance. The NVMe...

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  • Communication Protocol

    Most SSDs use SATA III or PCI Express.

    Almost all 2.5" SSDs connect via SATA III while most M.2 SSDs connect via PCI Express.


    PCI Express connection offers higher speeds, but this is mainly noticeable in demanding applications (high-resolution video processing, transferring large files, etc.) and is not necessary for everyday use.

  • Write Speed

    Indicative size for the maximum speed of the hard disk during data recording. The larger the size, the faster the data recording.

    For an SSD that uses the SATA III protocol, the average recording speed is 300MB/s, while for one with NVMe it is 1200MB/s.

    These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable.

  • Read Speed

    Indicative size for the maximum speed of the hard disk during data reading. The larger the size, the faster the data reading speed.

    An average reading speed for an SSD using the SATA III protocol is 600MB/s, while for one with NVMe it is 2000MB/s.

    These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable. 
  • Usage Laptops
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The product is not available at Skroutz Last updated: 7 months ago
Product report

Description

Description

The Adata Legend 840 SSD 512GB is a powerful and efficient storage unit that uses the M.2 NVMe PCI Express 4.0 connection. With a capacity of 512GB, it offers ample space for storing data, applications, and games, while the PCIe 4.0 technology ensures high data transfer speeds, reducing loading times and improving overall system performance. The NVMe protocol enhances the speed and efficiency of the unit, making it ideal for demanding applications and gaming. The Adata Legend 840 is designed to provide reliable and fast performance, making it an excellent choice for upgrading or building a new computer.


The ultimate in performance

The LEGEND 840 offers sequential read and write speeds of 5000/4500 MB per second, which is up to 3 times faster than a typical PCIe Gen3 SSD and 15 times faster than a SATA SSD. It is backward compatible with PCIe 3.0 and is built for creation, whether it's virtual design, animations, or game development!

Compatible with PS5

The LEGEND 840 works with PS5 consoles as extended storage. Not only does its size comply with the slot design, but it also provides smooth and lag-free gaming.

Cool

The black heatsink design of LEGEND 840 with bronze decoration keeps everything cool. Through a state-of-the-art surface treatment, it dissipates heat with incredibly effective temperature reduction.

The perfect professional

The LEGEND 840 comes with SLC Caching and HMB technology (Host Memory Buffer) for seamless productivity. It features 4K random read/write up to 650K/600K IOPS for smoother multitasking.

Create Without Worry

LDPC and AES 256-bit encryption ensure data accuracy and file security.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Details

Capacity
512 GB

Capacity

The golden ratio of cost and capacity for now is 500GB and 1TB.

For gaming or professional programs that require a lot of space for their installation, a capacity of at least 500GB is recommended. 

As an indication, a 1TB hard drive can hold about 250 thousand photos taken with a 12MP camera or 250 movies.
Communication Protocol
PCI Express 4.0

Communication Protocol

Most SSDs use SATA III or PCI Express.

Almost all 2.5" SSDs connect via SATA III while most M.2 SSDs connect via PCI Express.


PCI Express connection offers higher speeds, but this is mainly noticeable in demanding applications (high-resolution video processing, transferring large files, etc.) and is not necessary for everyday use.
NVMe
Yes

NVMe

Communication template that enhances the performance and speed of SSDs.

The higher speeds offered by an NVMe drive are mainly applicable to demanding applications (high-resolution video processing, transferring large files, etc.) and are not necessary for simple everyday use.
Heatsink
Yes

Heatsink

The SSD is equipped with a heatsink to maintain low temperatures, ensuring better performance and more efficient heat dissipation in the SSD.
Compatible with PlayStation 5
No

Compatible with PlayStation 5

Compatible with PS5.
Device Group
Laptops

Dimensions

Form Factor
M.2 (Type 2280)

Form Factor

The term form factor refers to the physical size of SSDs. The motherboard must support the form factor of the SSD in order for it to be installed.


The higher speeds offered by an NVMe drive are mainly applicable to demanding applications (such as high-definition video processing, transferring large files, etc.) and are not necessary for everyday use.

M.2 (Type 2280)
The motherboard must support the form factor in order for the SSD to be installed on it. It is worth noting that M.2 drives are divided into those that use the SATA protocol and those that use PCI Express. Of the SSDs that use the PCI Express protocol, most also support NVMe technology, which allows them even faster speeds if supported by the motherboard.

Performance

Read Speed
5000 MB/s

Read Speed

Indicative size for the maximum speed of the hard disk during data reading. The larger the size, the faster the data reading speed.

An average reading speed for an SSD using the SATA III protocol is 600MB/s, while for one with NVMe it is 2000MB/s.

These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable. 
Write Speed
4500 MB/s

Write Speed

Indicative size for the maximum speed of the hard disk during data recording. The larger the size, the faster the data recording.

For an SSD that uses the SATA III protocol, the average recording speed is 300MB/s, while for one with NVMe it is 1200MB/s.

These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable.
Maximum 4KB Random Write
600000 IOPS

Maximum 4KB Random Write

Indicative size for the maximum speed of the hard disk in data recording during general use, for example (opening the computer/using applications). The larger the size, the faster it is in these functions.

Average read speed for an SSD using the SATA III protocol is 80,000 IOPS, while for one with NVMe it is 380,000 IOPS.

These differences make sense in particularly demanding use (e.g. high-resolution video editing). For most users, the differences will not be noticeable.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (7)

Reviews

4.9
7
4.9
Review this product
  1. 6
  2. 1
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Expected speed
  • Management software
  • Value for money
  • Reliability
  • Consistent performance

Reviews photos

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Reviews by our members

  • Dimigeo
    5
    2 out of 2 members found this review helpful
    Dimigeo

    Verified purchase

    I have put it in an external case and I have it as an external drive, the read write speeds are so high that I can edit and my Mac sees it as an internal disk, no issues with plans and timeline flow, if you are looking for an expansion for your Mac, it is the best!

    Translated from Greek ·
    • Expected speed
    • Reliability
    • Management software
    • Consistent performance
    • Value for money
    Did you find this review helpful?
  • lonewolf47
    5
    2 out of 3 members found this review helpful
    lonewolf47

    It is the second ADATA M.2 that I have purchased. The speeds shown in the screenshot are indicative and it performs even better, all on an old motherboard with M.2 PCI Express x2. On a new one with PCI Express 4.0, I am sure it would reach its nominal speeds, but it is still faster than the Samsung Evo it replaced. Its software is very good and it even has a cloning option which works exceptionally well. Keep in mind that M.2 drives occupy most of the bandwidth, so not all SATA ports will be available. As a downside, you could say that its heatsink is basic, rather a thin flat plate without ridges or a "comb" profile, and as shown in the pictures, you have to attach it yourself, but I think this applies to other models as well.

    EDIT: After 8 months, its health dropped to 99% according to the very good software, indicating that it has processed 8.8 terabytes of data. Personally, considering the money I paid, I don't consider it a problem. Important files are ALWAYS stored on an external hard drive.

    Translated from Greek ·
    • Reliability
    • Unstable performance
    Did you find this review helpful?
  • g.papoutsis
    4
    g.papoutsis

    Verified purchase

    They are used (2) in Raid1 to accelerate Read-Write on NAS with HDD disks in Raid5. They multiplied (minimum) the writing speed by five. It shows very fast, good value for performance ratio.

    Translated from Greek ·
    • Expected speed
    • Reliability
    • Value for money
    Did you find this review helpful?
  • 5
    panagiotistsinaslanidis

    Verified purchase

    This review is about the capacity: 1000 GB

  • 5
    Γιάννης Βεσλεμές

    Verified purchase

    This review is about the capacity: 1000 GB

    • Expected speed
    • Reliability
    • Consistent performance
    • Value for money
  • 5
    Giannis_Taxidis9901

    Verified purchase

    • Expected speed
    • Reliability
    • Consistent performance
    • Value for money
  • 5
    markogiannakis

    Verified purchase

    This review is about the capacity: 1000 GB

    • Expected speed
    • Reliability
    • Management software
    • Consistent performance
    • Value for money
  • Dimigeo
    5
    Dimigeo

    I have put it in an external case and I have it as an external drive, the read write speeds are so high that I can edit and my Mac sees it as an internal disk, no issues with plans and timeline flow, if you are looking for an expansion for your Mac, it is the best!

    Translated from Greek ·
    2
  • lonewolf47
    5
    lonewolf47

    It is the second ADATA M.2 that I have purchased. The speeds shown in the screenshot are indicative and it performs even better, all on an old motherboard with M.2 PCI Express x2. On a new one with PCI Express 4.0, I am sure it would reach its nominal speeds, but it is still faster than the Samsung Evo it replaced. Its software is very good and it even has a cloning option which works exceptionally well. Keep in mind that M.2 drives occupy most of the bandwidth, so not all SATA ports will be available. As a downside, you could say that its heatsink is basic, rather a thin flat plate without ridges or a "comb" profile, and as shown in the pictures, you have to attach it yourself, but I think this applies to other models as well.

    EDIT: After 8 months, its health dropped to 99% according to the very good software, indicating that it has processed 8.8 terabytes of data. Personally, considering the money I paid, I don't consider it a problem. Important files are ALWAYS stored on an external hard drive.

    Translated from Greek ·
    2
  • g.papoutsis
    4
    g.papoutsis

    They are used (2) in Raid1 to accelerate Read-Write on NAS with HDD disks in Raid5. They multiplied (minimum) the writing speed by five. It shows very fast, good value for performance ratio.

    Translated from Greek ·
    0
  • 5
    panagiotistsinaslanidis

    0
  • 5
    Γιάννης Βεσλεμές

    0
  • See all
Questions

Questions

Do you have a question about the product?

19 users have this product and can help you

Ask for the product

Description & Specifications

The Adata Legend 840 SSD 512GB is a powerful and efficient storage unit that uses the M.2 NVMe PCI Express 4.0 connection. With a capacity of 512GB, it offers ample space for storing data, applications, and games, while the PCIe 4.0 technology ensures high data transfer speeds, reducing loading times and improving overall system performance. The NVMe protocol enhances the speed and efficiency of the unit, making it ideal for demanding applications and gaming. The Adata Legend 840 is designed to provide reliable and fast performance, making it an excellent choice for upgrading or building a new computer.


The ultimate in performance

The LEGEND 840 offers sequential read and write speeds of 5000/4500 MB per second, which is up to 3 times faster than a typical PCIe Gen3 SSD and 15 times faster than a SATA SSD. It is backward compatible with PCIe 3.0 and is built for creation, whether it's virtual design, animations, or game development!

Compatible with PS5

The LEGEND 840 works with PS5 consoles as extended storage. Not only does its size comply with the slot design, but it also provides smooth and lag-free gaming.

Cool

The black heatsink design of LEGEND 840 with bronze decoration keeps everything cool. Through a state-of-the-art surface treatment, it dissipates heat with incredibly effective temperature reduction.

The perfect professional

The LEGEND 840 comes with SLC Caching and HMB technology (Host Memory Buffer) for seamless productivity. It features 4K random read/write up to 650K/600K IOPS for smoother multitasking.

Create Without Worry

LDPC and AES 256-bit encryption ensure data accuracy and file security.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Product Details

Capacity
512 GB

Capacity

The golden ratio of cost and capacity for now is 500GB and 1TB.

For gaming or professional programs that require a lot of space for their installation, a capacity of at least 500GB is recommended. 

As an indication, a 1TB hard drive can hold about 250 thousand photos taken with a 12MP camera or 250 movies.
Communication Protocol
PCI Express 4.0

Communication Protocol

Most SSDs use SATA III or PCI Express.

Almost all 2.5" SSDs connect via SATA III while most M.2 SSDs connect via PCI Express.


PCI Express connection offers higher speeds, but this is mainly noticeable in demanding applications (high-resolution video processing, transferring large files, etc.) and is not necessary for everyday use.
NVMe
Yes

NVMe

Communication template that enhances the performance and speed of SSDs.

The higher speeds offered by an NVMe drive are mainly applicable to demanding applications (high-resolution video processing, transferring large files, etc.) and are not necessary for simple everyday use.
Heatsink
Yes

Heatsink

The SSD is equipped with a heatsink to maintain low temperatures, ensuring better performance and more efficient heat dissipation in the SSD.
Compatible with PlayStation 5
No

Compatible with PlayStation 5

Compatible with PS5.
Device Group
Laptops

Dimensions

Form Factor
M.2 (Type 2280)

Form Factor

The term form factor refers to the physical size of SSDs. The motherboard must support the form factor of the SSD in order for it to be installed.


The higher speeds offered by an NVMe drive are mainly applicable to demanding applications (such as high-definition video processing, transferring large files, etc.) and are not necessary for everyday use.

M.2 (Type 2280)
The motherboard must support the form factor in order for the SSD to be installed on it. It is worth noting that M.2 drives are divided into those that use the SATA protocol and those that use PCI Express. Of the SSDs that use the PCI Express protocol, most also support NVMe technology, which allows them even faster speeds if supported by the motherboard.

Performance

Read Speed
5000 MB/s

Read Speed

Indicative size for the maximum speed of the hard disk during data reading. The larger the size, the faster the data reading speed.

An average reading speed for an SSD using the SATA III protocol is 600MB/s, while for one with NVMe it is 2000MB/s.

These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable. 
Write Speed
4500 MB/s

Write Speed

Indicative size for the maximum speed of the hard disk during data recording. The larger the size, the faster the data recording.

For an SSD that uses the SATA III protocol, the average recording speed is 300MB/s, while for one with NVMe it is 1200MB/s.

These differences make sense in particularly demanding use cases (e.g. high-resolution video editing). For most users, the differences will not be noticeable.
Maximum 4KB Random Write
600000 IOPS

Maximum 4KB Random Write

Indicative size for the maximum speed of the hard disk in data recording during general use, for example (opening the computer/using applications). The larger the size, the faster it is in these functions.

Average read speed for an SSD using the SATA III protocol is 80,000 IOPS, while for one with NVMe it is 380,000 IOPS.

These differences make sense in particularly demanding use (e.g. high-resolution video editing). For most users, the differences will not be noticeable.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (7)

4.9
7
4.9
Review this product
  1. 6
  2. 1
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Expected speed
  • Management software
  • Value for money
  • Reliability
  • Consistent performance

Reviews photos

Reviews photos
Reviews photos
Reviews photos
Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • Dimigeo
    5
    2 out of 2 members found this review helpful
    Dimigeo

    Verified purchase

    I have put it in an external case and I have it as an external drive, the read write speeds are so high that I can edit and my Mac sees it as an internal disk, no issues with plans and timeline flow, if you are looking for an expansion for your Mac, it is the best!

    Translated from Greek ·
    • Expected speed
    • Reliability
    • Management software
    • Consistent performance
    • Value for money
    Did you find this review helpful?
  • lonewolf47
    5
    2 out of 3 members found this review helpful
    lonewolf47

    It is the second ADATA M.2 that I have purchased. The speeds shown in the screenshot are indicative and it performs even better, all on an old motherboard with M.2 PCI Express x2. On a new one with PCI Express 4.0, I am sure it would reach its nominal speeds, but it is still faster than the Samsung Evo it replaced. Its software is very good and it even has a cloning option which works exceptionally well. Keep in mind that M.2 drives occupy most of the bandwidth, so not all SATA ports will be available. As a downside, you could say that its heatsink is basic, rather a thin flat plate without ridges or a "comb" profile, and as shown in the pictures, you have to attach it yourself, but I think this applies to other models as well.

    EDIT: After 8 months, its health dropped to 99% according to the very good software, indicating that it has processed 8.8 terabytes of data. Personally, considering the money I paid, I don't consider it a problem. Important files are ALWAYS stored on an external hard drive.

    Translated from Greek ·
    • Reliability
    • Unstable performance
    Did you find this review helpful?
  • g.papoutsis
    4
    g.papoutsis

    Verified purchase

    They are used (2) in Raid1 to accelerate Read-Write on NAS with HDD disks in Raid5. They multiplied (minimum) the writing speed by five. It shows very fast, good value for performance ratio.

    Translated from Greek ·
    • Expected speed
    • Reliability
    • Value for money
    Did you find this review helpful?
  • 5
    panagiotistsinaslanidis

    Verified purchase

    This review is about the capacity: 1000 GB

  • 5
    Γιάννης Βεσλεμές

    Verified purchase

    This review is about the capacity: 1000 GB

    • Expected speed
    • Reliability
    • Consistent performance
    • Value for money
  • 5
    Giannis_Taxidis9901

    Verified purchase

    • Expected speed
    • Reliability
    • Consistent performance
    • Value for money
  • 5
    markogiannakis

    Verified purchase

    This review is about the capacity: 1000 GB

    • Expected speed
    • Reliability
    • Management software
    • Consistent performance
    • Value for money
  • Dimigeo
    5
    Dimigeo

    I have put it in an external case and I have it as an external drive, the read write speeds are so high that I can edit and my Mac sees it as an internal disk, no issues with plans and timeline flow, if you are looking for an expansion for your Mac, it is the best!

    Translated from Greek ·
    2
  • lonewolf47
    5
    lonewolf47

    It is the second ADATA M.2 that I have purchased. The speeds shown in the screenshot are indicative and it performs even better, all on an old motherboard with M.2 PCI Express x2. On a new one with PCI Express 4.0, I am sure it would reach its nominal speeds, but it is still faster than the Samsung Evo it replaced. Its software is very good and it even has a cloning option which works exceptionally well. Keep in mind that M.2 drives occupy most of the bandwidth, so not all SATA ports will be available. As a downside, you could say that its heatsink is basic, rather a thin flat plate without ridges or a "comb" profile, and as shown in the pictures, you have to attach it yourself, but I think this applies to other models as well.

    EDIT: After 8 months, its health dropped to 99% according to the very good software, indicating that it has processed 8.8 terabytes of data. Personally, considering the money I paid, I don't consider it a problem. Important files are ALWAYS stored on an external hard drive.

    Translated from Greek ·
    2
  • g.papoutsis
    4
    g.papoutsis

    They are used (2) in Raid1 to accelerate Read-Write on NAS with HDD disks in Raid5. They multiplied (minimum) the writing speed by five. It shows very fast, good value for performance ratio.

    Translated from Greek ·
    0
  • 5
    panagiotistsinaslanidis

    0
  • 5
    Γιάννης Βεσλεμές

    0
  • See all