SSDs / Compare

Sandisk Optimus GX 7100 vs Western Digital WD Green SN3000

A

Product A: Sandisk

Optimus GX 7100

43 of 63 known

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B

Product B: Western Digital

WD Green SN3000

27 of 63 known

Change Western Digital WD Green SN3000

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All 63 fields

Every value links to where we found it.

Only differences

ASandisk Optimus GX 7100

BWestern Digital WD Green SN3000

General

4 of 9 differ

Series

Optimus GX2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026Maker line name is SANDISK Optimus GX, model 7100

WD Green1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Data sheet title reads WD Green SN3000 NVMe SSD

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

SDSP71500GAN, SDSP71500GAN-000E0, WDS500G4X0E-00CJA0, SDSP71100TAN, SDSP71100TAN-000E0, WDS100T4X0E-00CJA0, SDSP71200TAN, SDSP71200TAN-000E0, WDS200T4X0E-00CJA0, SDSP71400TAN, SDSP71400TAN-000E0, WDS400T4X0E-00CJA01Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 20262Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026SKU codes carry a -000E0 suffix3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn7100-nvme-ssd.pdfRead 14 October 2026WD_BLACK SN7100 datasheet, July 2025. Model numbers WDS500G4X0E-00CJA0, WDS100T4X0E-00CJA0, WDS200T4X0E-00CJA0 and WDS400T4X0E-00CJA0. Same speeds, IOPS, TBW, size, weight and 0 to 85 C range as the Optimus datasheet, which is why the legacy codes are listed on the same rows5Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Legacy WD_BLACK part numbers WDS500G4X0E, WDS100T4X0E and WDS200T4X0E, listed without the maker suffix

WDS500G4G0E, WDS500G4G0E-00CPS0, WDS500G5G0E-00VNF0, WDS100T4G0E, WDS100T4G0E-00CPS0, WDS200T4G0E, WDS200T4G0E-00CPS01Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: WDS500G4G0E (500GB), WDS100T4G0E (1TB), WDS200T4G0E (2TB). The suffixed numbers are on the Sandisk product page and retailer listings2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026The page lists WDS500G5G0E-00VNF0 (500GB), WDS100T4G0E-00CPS0 (1TB) and WDS200T4G0E-00CPS0 (2TB). The 500GB WDS500G4G0E-00CPS0 is listed by retailers, for example SHI UK8Retailer pageuk.shi.com/product/49459475/WD-Green-SN3000-WDS500G4G0E-00CPS0Read 14 October 2026SHI UK lists the 500GB as WDS500G4G0E-00CPS0

GTIN / EAN

Not available

718037907154, 718037904603, 57153282617927Spec databasebuildcores.com/products/Storage/wbab0r8hy/Western-Digital-WD-Green-SN3000-1TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 20261TB, WDS100T4G0E-00CPS0. UPC 718037907154 and 718037904603, EAN 5715328261792. No GTINs were found for the 500GB and 2TB

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

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Status

Available2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026Listed for sale on sandisk.com in 500GB, 1TB, 2TB and 4TB

Available5Reviewtomshardware.com/reviews/best-ssds,3891.htmlRead 14 October 2026Tom's Hardware Best SSDs guide (updated October 2026) ranks the WD Green SN3000 14th as the best ultra-bargain M.2 SSD and links current Amazon, Walmart and Best Buy offers

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

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SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

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Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$139.995Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Spec table pricing row: 500GB $54.99, 1TB $84.99, 2TB $139.99 at review time, 12 March 2025. These match the review's launch coverage. No launch MSRP found for the 4TB, which came after launch

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Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

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MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

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ColoursiThe maker's own colour names

Black2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026

Not available

Form factoriPhysical size of the drive. External is any drive in its own case that connects by cable. A drive sold in two M.2 lengths is two products. Xbox expansion card is a card for the storage expansion slot of an Xbox Series console.

M.2 22801Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

M.2 22801Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: Form Factor M.2 2280 S3-M2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Form Factor M.2 2280

CapacityiNominal capacity before formatting, in decimal GB. A published 1 TB is 1000 GB. A published 1024GB stays 1024. The marketed capacity is stored, not a raw or usable figure from the same table, such as OWC's 2048 GB total and 1920 GB usable for a 2.0TB drive.

500 GB, 1 TB, 2 TB, 4 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

500 GB, 1 TB, 2 TB1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table lists 500GB, 1TB and 2TB. The footnote says 1GB equals one billion bytes. Tom's Hardware also lists 250GB in a guide, but no 250GB model was found on the maker's pages

Interface

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InterfaceiFastest host connection the drive is rated for. The PCIe generation of an NVMe drive is its own field. A Thunderbolt drive that also works over USB uses its Thunderbolt version.

PCIe NVMe1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026PCIe 4.0 x4 NVMe 2.0. Footnote says it is backwards compatible with PCIe 3.0 x4, 3.0 x2, 3.0 x1 and lower

PCIe NVMe1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: Interface PCIe Gen4 x4 NVMe

PCIe generationiHighest PCIe generation the drive supports, e.g. 5 for PCIe 5.0. NVMe drives only. A drive rated for PCIe 4.0 x4 or 5.0 x2 is 5 with 2 lanes, and the source note names both modes.

41Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

41Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Interface row reads PCIe Gen4 x4 NVMe. The Sandisk page says the drive also works in Gen4 x2 and Gen3 slots

PCIe lanesiLanes the drive uses at its highest PCIe generation, usually 4. NVMe drives only.

41Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

41Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Interface row reads PCIe Gen4 x4 NVMe

NVMe versioniVersion of the NVMe specification as published. A revision letter is left out, so 2.0d is stored as 2.0.

2.01Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Datasheet reads NVMe 2.0. Tom's Hardware lists NVMe 1.4, ServeTheHome's CrystalDiskInfo shows NVMe 2.0, so the datasheet value is stored7Reviewservethehome.com/wd-black-sn7100-2tb-nvme-ssd-reviewRead 14 October 2026CrystalDiskInfo confirms PCIe 4.0 x4 speeds using NVMe 2.0

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Detachable cableiExternal drives. No means the cable is fixed to the drive.

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Hardware

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ControlleriController maker and model as named by the maker or a review. On an external drive, the controller of the SSD inside, not the USB or Thunderbolt bridge chip. The bridge chip goes in the source note.

Sandisk Polaris 35Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Spec table reads Polaris 3 (Proprietary) on all capacities. The maker does not name the controller9Reviewpcworld.com/article/2592443/wd-black-sn7100-ssd-review.htmlRead 14 October 2026Describes a Sandisk A101-000172-A1 controller. Tom's Hardware names it Polaris 3

Sandisk Polaris 36Reviewchimolog.co/wd-sn3000Read 14 October 2026Japanese review of a purchased 2TB (WDS200T4G0E). Teardown reads the controller as SanDisk Polaris 3, marking A101-000101-A1. Tom's Hardware calls it a Sandisk proprietary controller. The Polaris 3 name matches the catalog's Sandisk Optimus 5100

Flash typeiBits stored in each flash cell. TLC stores three and QLC stores four. A maker can use another flash type in some capacities, so it is per variant.

TLC1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

QLC1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: NAND type Western Digital QLC 3D NAND. Reviewers disagree on the flash maker and generation, so those are left out. Chimolog read the chip of a 2TB sample as Kioxia BiCS6 162-layer QLC. Tom's Hardware lists Sandisk 218-layer BiCS8 QLC, which it says it is fairly confident about from its results

Flash memoryiFlash maker and generation as named by the maker or a review.

Sandisk BiCS8 TLC1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026NAND row reads SANDISK TLC 3D CBA NAND and the text says 8th generation SANDISK BiCS TLC 3D CBA NAND5Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Spec table reads Sandisk 218-Layer TLC (BiCS8)9Reviewpcworld.com/article/2592443/wd-black-sn7100-ssd-review.htmlRead 14 October 2026BiCS8 NAND. ServeTheHome writes BiCS6 162-layer, which disagrees with the maker, Tom's Hardware and PCWorld, and is not used

Not available

Flash layersiStacked layers of the 3D flash, from the maker or a review.

2185Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026218 layers

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DRAM cacheiDRAM is a memory chip on the drive. HMB is a drive without DRAM that borrows host memory. None has neither. HMB not stated is a drive without DRAM where no source says whether it borrows host memory. An external drive counts when a source names the cache of the drive inside.

None, uses host memory (HMB)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026DRAM cache row reads Host Memory Buffer, so the drive has no DRAM chip5Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Spec table lists N/A (HMB) on all capacities9Reviewpcworld.com/article/2592443/wd-black-sn7100-ssd-review.htmlRead 14 October 2026Host memory buffer, DRAM-less design

None, uses host memory (HMB)3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Specs table lists DRAM as N/A (HMB) for all three capacities. The Chimolog teardown agrees: no DRAM chip and a host memory buffer of up to 64 MB6Reviewchimolog.co/wd-sn3000Read 14 October 2026Review says no DRAM and a host memory buffer (HMB) of up to 64 MB plus SRAM inside the controller

DRAM cache sizeiSize of the DRAM on the drive. Any DRAM type counts, such as DDR4 or LPDDR4X. Host memory buffer (HMB) is not DRAM on the drive.

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Component sidesiWhether chips sit on one or both sides of the board. Thin laptops and some handhelds need single-sided drives. M.2 drives only. The M.2 module code states it: S is single-sided and D is double-sided, e.g. 2280-S3-M or 2280-D5-M.

Single-sided1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Form factor reads M.2 2280-S3-M for every capacity. In the M.2 module naming S is single-sided5Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-reviewRead 14 October 2026Review says the drive is single-sided with one NAND flash package. A 4TB would need two packages, which TH did not yet test9Reviewpcworld.com/article/2592443/wd-black-sn7100-ssd-review.htmlRead 14 October 2026Single-sided, 2280, 22 mm wide and 80 mm long

Single-sided1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Highlights: the drive uses a single-sided M.2 2280. The form factor code S3-M also means single-sided2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Page text reads single-sided M.2 2280 to be compatible with thin laptops and small PCs3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Review text: a single-sided drive with an SSD controller, a power management chip and a single NAND flash package

Performance

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Sequential read (claimed)iMaker's up-to sequential read speed for this capacity. Test conditions are in the source note.

7,250MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Product specifications table. Sequential 1MB at queue depth 8, 1 thread, up to. 6,800, 7,250, 7,250 and 7,000 MB/s for 500GB, 1TB, 2TB and 4TB. Based on internal testing, host not named

5,000MB/s1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sequential Read 5,000 MB/s on all capacities, queue depth 8, threads 1. Based on read speed. Maker's internal testing, host not named2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Specifications: Sequential Read Performance 5000MB/s for all three capacities

Sequential write (claimed)iMaker's up-to sequential write speed for this capacity. Makers usually measure it inside the fast write cache.

6,900MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 20265,800, 6,900, 6,900 and 6,700 MB/s for 500GB, 1TB, 2TB and 4TB

4,200MB/s1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sequential Write 4,100 MB/s (500GB), 4,200 MB/s (1TB) and 4,200 MB/s (2TB), queue depth 8, threads 12Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Sequential Write Performance 4100MB/s (500GB), 4200MB/s (1TB and 2TB)

Random 4K read (claimed)iMaker's up-to random read speed with 4 KB blocks. Queue depth and threads are in the source note. The maker's headline claim. Makers test at different queue depths, so compare with care. The queue depth 1 measured fields compare better.

1,000,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Random 4KB at queue depth 32, 16 threads, up to. 760K, 1M, 1M and 900K IOPS by capacity

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Random 4K write (claimed)iMaker's up-to random write speed with 4 KB blocks. Queue depth and threads are in the source note. The maker's headline claim. Makers test at different queue depths, so compare with care. The queue depth 1 measured fields compare better.

1,400,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 20261.2M, 1.4M, 1.4M and 1.35M IOPS by capacity, same test settings

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Endurance and reliability

2 of 3 differ

Endurance (TBW)iTerabytes that can be written within the warranty, as the maker rates them.

1,200TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026300, 600, 1,200 and 2,400 TBW by capacity, JEDEC client workload JESD219. Warranty is 5 years or the TBW, whichever comes first

250TB1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Endurance 100 (500GB), 150 (1TB), 250 (2TB) TBW, calculated with the JEDEC client workload JESD219. Warranty ends at 3 years or the TBW, whichever is first2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Endurance (TBW) 100 (500GB), 150 (1TB) and 250 (2TB), written 150 units and 250 units on the page

MTBF or MTTF (claimed)iMean time between failures, or mean time to failure when the maker publishes MTTF. The source note says which. Some makers state it per capacity, so it is per variant.

1,750,000h1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Published as MTTF up to 1.75M hours, from internal Telcordia SR-332 stress testing at 25 C. It is not an MTBF

1,750,000h1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Published as MTTF, 1.75M hours, from internal Telcordia SR-332 stress testing. Chimolog's table lists 1 million hours, the maker figure is used

Operating temperatureiMaker's operating range. The storage range is not stored.

Min0Max85°C1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 20260 to 85 C as reported by the drive. The non-operating range is not stored

Min0Max80°C1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Operating temperature 0 C to 80 C, as reported by the drive. The non-operating range of -40 C to 85 C is not stored2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Operating Temperature 0 C to 80 C

Power

3 of 6 differ

Power while reading (claimed)iMaker's average power during sequential reads, including a figure given at the full read speed. A single average or active figure with no read and write split, such as Corsair's, is stored in both read and write, and the source note says so. A maximum figure, such as Kingston's (MAX) Read, is a peak and is not stored.

3.7W1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Average active power read, IOMeter 1.1.0 burst sequential read, 10 second moving average. 3.4, 3.4, 3.7 and 4.1 W by capacity

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Power while writing (claimed)iMaker's average power during sequential writes. A single average or active figure with no read and write split is stored in both read and write, and the source note says so. A maximum figure, such as Kingston's (MAX) Write, is a peak and is not stored.

3.9W1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Average active power write, same method. 3.5, 3.7, 3.9 and 4.0 W by capacity

Not available

Max power consumption (claimed)iMaker's peak or maximum power figure. Not the average while reading or writing. Kingston publishes max read and max write power apart. Store the higher one and name both in the source note.

Not available

Not available

Average power in light use (claimed)iMaker's average over a mixed client workload such as MobileMark. Not idle power and not read or write power.

Not available

Not available

Idle power (claimed)iMaker's idle power in the PS3 state with APST on, or the state the maker calls low-power idle. On a SATA drive, Slumber counts as low-power idle. A plain idle figure with no low-power state, often near 1 W, is active idle and is not stored. Samsung's Idle with DIPM on is a SATA link power state, so it counts as low-power idle.

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Sleep power (claimed)iMaker's power in the deepest sleep state, PS4 or L1.2. On a SATA drive this is DevSleep.

5mW1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Sleep (PS4), 5 mW at every capacity. The datasheet lists no idle figure

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Measured

6 of 9 differ

Sequential read (measured)iCrystalDiskMark SEQ1M Q8T1 read result from a reviewer. Host and slot are in the source note. KitGuru's default profile counts as SEQ1M Q8T1.

7,201MB/s8Reviewservethehome.com/wd-black-sn7100-2tb-nvme-ssd-review/2Read 14 October 20262TB, CrystalDiskMark 8.0.4 x64, 1GiB test size, five runs, SEQ1M Q8T1 read 7,200.55 MB/s. The screenshot shows the drive as C: with 64% used (1192 of 1863 GiB). Values read from the CrystalDiskMark screenshot. The 8GB test shows a large write drop

Not available

Sequential write (measured)iCrystalDiskMark SEQ1M Q8T1 write result from a reviewer. Host and slot are in the source note.

5,855MB/s8Reviewservethehome.com/wd-black-sn7100-2tb-nvme-ssd-review/2Read 14 October 2026SEQ1M Q8T1 write 5,855.22 MB/s, same run

Not available

Random 4K read at queue depth 1 (measured)iCrystalDiskMark RND4K Q1T1 read result from a reviewer. Small reads one at a time, close to everyday use. KitGuru's 4K QD1 1 Thread test counts as RND4K Q1T1. A CrystalDiskMark result printed in IOPS is stored as IOPS x 4096 / 1,000,000 MB/s, the way CrystalDiskMark converts.

106.78MB/s8Reviewservethehome.com/wd-black-sn7100-2tb-nvme-ssd-review/2Read 14 October 2026RND4K Q1T1 read 106.78 MB/s, same screenshot

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Random 4K write at queue depth 1 (measured)iCrystalDiskMark RND4K Q1T1 write result from a reviewer. A CrystalDiskMark result printed in IOPS is stored as IOPS x 4096 / 1,000,000 MB/s, the way CrystalDiskMark converts.

287.89MB/s8Reviewservethehome.com/wd-black-sn7100-2tb-nvme-ssd-review/2Read 14 October 2026RND4K Q1T1 write 287.89 MB/s, same screenshot

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Write cache size (measured)iData written at full speed in one long sequential write on an empty drive before the speed drops.

Not available

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Write speed after the cache (measured)iWrite speed in the first state after the fast cache is full, when the drive writes straight to TLC or QLC. Tom's Hardware calls it TLC mode. The slower folding state and the lowest dip are not stored. Only from a long sequential write test.

2,860MB/s6Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-review/2Read 14 October 20262TB, 15-minute Iometer sequential write. About 6.5 GB/s in SLC mode, then TLC mode with writing around 2.86 GB/s, then about 850 MB/s in a semi-folding state. The TLC mode figure is stored. Intel Core i9-12900K, Asus ROG Maximus Z790 Hero, drive prefilled to 50%, tested as a secondary device. ServeTheHome's 800 MB/s is its lowest steady point, a different state.

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3DMark Storage BenchmarkiOverall score measured by a reviewer. Host and slot are in the source note. From StorageReview only. Tom's Hardware scores the same drive about 30 percent higher, so other reviewers are not mixed in.

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Highest temperature under load (measured)iHighest drive sensor reading in a sustained write test of 10 minutes or more, on the bare drive unless the row is a heatsink version. Short benchmark runs do not count. Heatsink, airflow and room temperature go in the source note.

64°C6Reviewtomshardware.com/pc-components/ssds/wd-black-sn7100-ssd-review/2Read 14 October 20262TB bare drive. Maximum 64 C during testing, usually under 60 C. Primary composite sensor, about 22 C ambient, active cooling unless noted, Intel Core i9-12900K on Asus ROG Maximus Z790 Hero, drive prefilled to 50% and tested as a secondary device. The review does not say a heatsink was fitted. ServeTheHome logged a 59 C peak without a heatsink or active cooling with HWMonitor

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Idle power (measured)iReviewer's idle reading. Power-saving settings such as ASPM are in the source note. A value read from a chart image counts when the source note says "read from chart".

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Cooling and build

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HeatsinkiVersions sold. The base lists every version and each variant row lists its own. A water block or a cooler with a fan counts as a heatsink. A thermal pad or label alone is bare. A heatsink in the box that the buyer fits, as on the XPG MARS 980 BLADE, counts as with heatsink.

Without heatsink1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Bare M.2 2280 module, 2.38 mm thick, and the datasheet and product page list no heatsink version

Without heatsink2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Only the bare drive is listed. In The Box holds the drive alone and the photos show a plain label

RGB lightingiAny version sold has lighting the user can set. A status LED alone does not count. Leave it out when no version has lighting. The Heatsink rows show which version has it.

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Dust and water ratingiPublished IP rating of an external drive.

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Drop test heightiMaker-published tested height. Surface and conditions are in the source note.

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Security and software

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SecurityiFeatures the maker names for the drive. Encryption done by host software does not count. ATA Security passthrough counts as password protection.

TCG Pyrite (no encryption), Password protection1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Datasheet reads TCG Pyrite 2.01 and ATA Security passthrough over NVMe. Pyrite has no encryption. ATA Security is the drive password feature, stored as password protection.

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Software

SanDisk Dashboard1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026Featured software: SANDISK Dashboard (Windows only) and Acronis True Image for SANDISK

SanDisk Dashboard3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Review text: Sandisk offers the SanDisk Dashboard and Acronis True Image for Sandisk. The maker's page names only Acronis True Image for Sandisk, a data migration tool

Compatibility

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PlatformsiPlatforms the maker names for this drive. A PS5 needs a heatsink on an internal drive. PC is for a maker that writes Client PCs or PC without naming an operating system. Handheld PCs go in Other with a source note.

Windows2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026Compatibility row reads Windows 10+, PCIe 4.0 x4 interface, M.2 2280 port. No PS5 or handheld claim on the page

PC (no OS named), Other2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Compatibility row reads M.2 NVMe PCs, laptops, and handhelds with PCIe Gen 4 x4, PCIe Gen4 x2, PCIe Gen3 x4, PCIe Gen3 x2. No operating system is named, so PC is stored, and handhelds go in other

Dimensions and weight

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DimensionsiLength is the long side. Height is the thickness, including a fitted heatsink. As the maker publishes it. A maximum counts. Length is the long side even when the maker lists the width first.

Length80Width22Height2.38mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 202680 x 22 x 2.38 mm for 500GB to 4TB. Length and width vary by 0.15 mm

Length80Width22Height2.38mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Physical dimensions: length max 80 mm, width max 22 mm, height max 2.38 mm. Length and width vary by 0.10 mm2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026The page lists 3.15 x 0.87 x 0.09 inches, the data sheet gives the exact millimetre maxima

WeightiDrive alone, with a heatsink when it is sold fitted. No cable and no packaging. As the maker publishes it. A maximum counts. Not a measured weight.

5.8g(0.2 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 20265.8 g for 500GB to 4TB, plus or minus 1 g

5.4g(0.2 oz)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Weight max 5.4 g, may vary by 10 percent. The Sandisk page also says 5.4 gms2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Weight 5.4gms

In the box

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In the box

SANDISK Optimus GX 7100 NVMe SSD2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026In The Box reads SANDISK Optimus GX 7100 NVMe SSD

WD Green SN3000 NVMe™ SSD2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026In The Box reads WD Green SN3000 NVMe SSD

Cables includediCables supplied with an external drive.

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Links

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Product page

www.sandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssd2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-7100-internal-nvme-ssdRead 14 October 2026

www.sandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssd2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Sandisk product page, with the sku parameter of the 1TB. The page lists the 500GB, 1TB and 2TB. The page template also holds a line saying a product is no longer available on Sandisk.com, which could not be matched to a SKU

Spec sheet

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

www.regard.ru/api/site/files/goodspdf/download/121411Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sandisk and Western Digital data sheet for the WD Green SN3000 NVMe SSD, dated September 2024. This is a copy hosted by the Russian retailer Regard. The Sandisk site did not link a data sheet file that could be fetched

Manual

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EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

5years1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx/data-sheet-optimus-gx-7100-internal-nvme-ssd.pdfRead 14 October 2026

3years1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Limited warranty 3 years or the TBW limit, whichever occurs first. The warranty is by region, see support.wdc.com2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 20263-Year Limited Warranty

Both are also in the API. Back to all SSDs.