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Biwin Black Opal NV7400 vs Sandisk Optimus GX PRO 8100

A

Product A: Biwin

Black Opal NV7400

37 of 63 known

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B

Product B: Sandisk

Optimus GX PRO 8100

47 of 63 known

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Every value links to where we found it.

Only differences

ABiwin Black Opal NV7400

BSandisk Optimus GX PRO 8100

General

5 of 9 differ

Series

Black Opal1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Page lists the drive under Black Opal: Gaming

Optimus GX PRO3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026Maker line name is SANDISK Optimus GX PRO, model 8100

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

BNV7400512G-RGX, BNV740001TB-RGX, BNV740002TB-RGX9Retailer pageamazon.com/dp/B0DM23JKXCRead 16 October 2026Listing reads Built-In Media NV7400-2TB. The maker-style part number BNV740002TB-RGX is on the Amazon UK 2TB listing10Retailer pageamazon.com/dp/B0F7NRNH59Read 16 October 2026512GB listing reads Mfr Part Number BNV7400512G-RGX11Retailer pageamazon.co.uk/dp/B0DM1R7KHZRead 16 October 20261TB listing reads Model Name BNV740001TB-RGX12Retailer pageamazon.co.uk/dp/B0DM23JKXCRead 16 October 20262TB listing reads Model Name BNV740002TB-RGX

SDSP82100TAN, SDSP82100TAN-000E0, WDS100T1X0M-00CMT0, SDSP82200TAN, SDSP82200TAN-000E0, WDS200T1X0M-00CMT0, SDSP82400TAN, SDSP82400TAN-000E0, WDS400T1X0M-00CMT0, SDSP82800TAN, SDSP82800TAN-000E0, WDS800T1X0M-00CMT0, SDSP82100TAH, SDSP82100TAH-000E0, WDS100T1XHM-00CMT0, SDSP82200TAH, SDSP82200TAH-000E0, WDS200T1XHM-00CMT0, SDSP82400TAH, SDSP82400TAH-000E0, WDS400T1XHM-00CMT0, SDSP82800TAH, SDSP82800TAH-000E0, WDS800T1XHM-00CMT01Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 20262Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-heatsink-internal-nvme-ssd.pdfRead 14 October 20263Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026SKU codes carry a -000E0 suffix4Maker 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-sn8100-nvme-ssd.pdfRead 14 October 2026WD_BLACK SN8100 datasheet, September 2025. Model numbers WDS100T1X0M-00CMT0, WDS200T1X0M-00CMT0, WDS400T1X0M-00CMT0 and WDS800T1X0M-00CMT0. Same speeds, IOPS, power, TBW, MTTF, 0 to 85 C range, TCG Opal 2.02 and size as the Optimus datasheet, which is why the legacy codes are listed on the same rows5Maker 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-sn8100-heatsink-nvme-ssd.pdfRead 14 October 2026WD_BLACK SN8100 with heatsink datasheet, September 2025. Model numbers WDS100T1XHM-00CMT0, WDS200T1XHM-00CMT0, WDS400T1XHM-00CMT0 and WDS800T1XHM-00CMT09Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Part numbers WDS100T1X0M-00CMT0 and WDS100T1XHM-00CMT0 for 1TB, with the 2TB and 4TB codes in the same table. X0M is bare and XHM is heatsink

GTIN / EAN

887184019000, 887184019017, 887184019024, 8871840190319Retailer pageamazon.com/dp/B0DM23JKXCRead 16 October 20262TB listing, UPC 88718401902410Retailer pageamazon.com/dp/B0F7NRNH59Read 16 October 2026512GB listing, UPC 88718401900011Retailer pageamazon.co.uk/dp/B0DM1R7KHZRead 16 October 20261TB listing, UPC 88718401901713Retailer pageamazon.co.uk/dp/B0DM1R7KJ1Read 16 October 20264TB listing, UPC 887184019031. The listing's Model Name field reads V74000, which is cut off, so no 4TB model number is stored

619659230999, 619659230982, 619659230975, 619659230968, 619659231934, 619659231927, 619659231019, 6196592310023Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026UPC values in the page data per SKU. Bare 8TB 619659230968, 4TB 619659230975, 2TB 619659230982, 1TB 619659230999. Heatsink 1TB 619659231934, 2TB 619659231927, 4TB 619659231019, 8TB 619659231002

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

Not available

May 20257Press articleblocksandfiles.com/2025/05/14/sandisk-supplies-fastest-gumstick-ssdRead 14 October 2026Dated 14 May 2025 and reports the SN8100 as just launched. Other coverage dates the launch to 13 May 2025

Status

Available1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Page links Amazon US and Amazon UK listings. The Amazon US 2TB listing was in stock on 2026-10-169Retailer pageamazon.com/dp/B0DM23JKXCRead 16 October 2026Amazon US NV7400 2TB listing in stock on 2026-10-16, sold by BIWIN Tech

Available3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026Listed for sale on sandisk.com in all four capacities with and without a heatsink

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

Not available

Not available

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

Not available

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

Not available

$279.997Press articleblocksandfiles.com/2025/05/14/sandisk-supplies-fastest-gumstick-ssdRead 14 October 2026SN8100 US MSRP 1TB $179.99, 2TB $279.99, 4TB $549.99, available at sandisk.com and select retailers. The heatsink version followed in the fall for $20 extra. The 8TB came later with no MSRP found8Reviewclub386.comRead 14 October 2026WD_Black SN8100 review lists $179.99, $279.99 and $549.99 for 1TB, 2TB and 4TB. It also says the 2TB runs at 55 C under load under motherboard heatsinks, a different test from the KitGuru value stored9Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Review text gives $179.99, $279.99 and $549.99 with $20 more for the heatsink. Its table shows $599.99 for the 4TB heatsink version, which disagrees with $20, so no 4TB heatsink price is stored

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

Not available

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

Not available

Not available

ColoursiThe maker's own colour names

Not available

Black3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026

M.2 22801Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

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.

512 GB, 1 TB, 2 TB, 4 TB1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026

1 TB, 2 TB, 4 TB, 8 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

Interface

1 of 5 differ

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026

PCIe NVMe1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Footnote says it is backwards compatible with PCIe 4.0 x4, 4.0 x2, 3.0 x4 and lower

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026

51Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

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

41Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026

41Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

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

2.01Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026Interface row reads PCIe Gen4x4, NVMe 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-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026PCIe 5.0 x4 NVMe 2.0

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

Not available

Not available

Hardware

5 of 7 differ

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.

Maxio MAP1602A5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Spec table reads Maxio MAP1602 for all capacities. The text calls it a four-channel DRAM-less controller. TheSSDReview names the A revision, MAP1602A, which is stored to match other drives in the catalog7Reviewthessdreview.com/our-reviews/nvme/biwin-black-opal-4tb-nv7400-gen4-ssd-reviewRead 16 October 2026Review dated 2025-03-09: Maxiotek MAP1602A Falcon Lite, a four-channel Gen4 NVMe controller at 2400MT/s

Silicon Motion SM25089Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Spec table: Silicon Motion SM2508 on all capacities11Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-reviewRead 14 October 2026SM2508-based controller with Sandisk in charge of firmware and features

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Page reads high-quality 3D TLC NAND flash5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026

TLC1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

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

Micron B58R TLC5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Spec table reads Micron 232-Layer TLC (B58R). The packages are labelled BW29F4T08EMLCHQM, and the review says the 29 marks Micron or Intel IMFT flash7Reviewthessdreview.com/our-reviews/nvme/biwin-black-opal-4tb-nv7400-gen4-ssd-reviewRead 16 October 2026Four pieces of Micron 232-layer B58R 3D TLC. The review corrects its first report of YMTC flash, after Biwin said early samples used YMTC and the final product uses Micron

Sandisk BiCS8 TLC9Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Spec table reads Kioxia 218-Layer BiCS8. The maker calls it SANDISK BiCS TLC 3D CBA NAND, 8th generation, so the maker's name is stored

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

2325Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Spec table reads Micron 232-Layer TLC (B58R)7Reviewthessdreview.com/our-reviews/nvme/biwin-black-opal-4tb-nv7400-gen4-ssd-reviewRead 16 October 2026232-layer B58R

2189Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 202611Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-reviewRead 14 October 2026Sandisk BiCS8 218-layer TLC 3D

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Spec table reads DRAM-less. The text says the drive uses HMB (host memory buffer) with SRAM and Smart Cache, so HMB is stored2Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026DRAM Cache row reads DRAM-less. HMB comes from the product page5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Spec table lists DRAM as N/A (HMB) for all capacities

DRAM1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026DRAM cache: Yes. The datasheet gives no size or type9Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Spec table lists DDR4 DRAM on all capacities

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.

Not available

2GB11Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-reviewRead 14 October 20262GB cache listed for the 2TB bare drive KitGuru tested. No size found for other capacities or for the heatsink version

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Dimensions row and text read standard M.2 2280 single-sided design2Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 20265Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Review: the NV7400 is a single-sided drive at all capacities

Single-sided1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Form factor reads M.2 2280-S3-M for 1TB to 4TB and M.2 2280-D5-M for 8TB. In the M.2 module naming S is single-sided and D is double-sided9Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-reviewRead 14 October 2026Review says the drive is single-sided at all launch capacities of 1TB, 2TB and 4TB

Performance

4 of 4 differ

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

7,450MB/s1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026Up to values, tested by BIWIN labs, host and tool not stated: 512GB 7,050 MB/s, 1TB 7,400, 2TB 7,450, 4TB 7,400. The base is the 2TB model

14,900MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Product specifications table, bare drive. Sequential 1MB at queue depth 8, 1 thread, up to. Based on internal testing, host not named

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

6,500MB/s1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026512GB 4,200 MB/s, 1TB 6,500, 2TB 6,500, 4TB 6,500

14,000MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 202611,000 MB/s for 1TB, 14,000 for 2TB and 4TB, 13,200 for 8TB

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026512GB 800K IOPS, 1TB 1,000K, 2TB 1,000K, 4TB 900K. Queue depth is not stated

2,300,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Random 4KB at queue depth 32, 16 threads, up to. 1.6M, 2.3M, 2.3M and 2.2M IOPS by capacity

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.

900,000IOPS1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026512GB 800K IOPS, 1TB 900K, 2TB 900K, 4TB 900K

2,400,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 20262.4M IOPS at every capacity, same test settings

Endurance and reliability

3 of 3 differ

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

2,000TB1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026Warranty row: 5-Year / 500 TBW (512GB), 1000 TBW (1TB), 2000 TBW (2TB), 4000 TBW (4TB)

1,200TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026600, 1,200, 2,400 and 4,800 TBW by capacity, JEDEC client workload JESD219. Warranty is 5 years or the TBW, whichever comes first

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.

1,500,000h1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026Published as MTBF, 1,500,000 hours, from internal Telcordia stress testing

1,750,000h1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-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

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

Min0Max70°C1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 20260 to 70 C. Storage range of -40 to 85 C 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-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 20260 to 85 C as reported by the drive. The non-operating range is not stored

Power

4 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.

Not available

6.4W1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Average active power read, IOMeter 1.1.0 burst sequential read, 10 second moving average. 6.2, 6.4, 6.5 and 7.1 W by capacity. KitGuru and Club386 quote 6.5 W for the 2TB, the datasheet says 6.4 W

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.

Not available

7W1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Average active power write, same method. 6.1, 7.0, 7.0 and 7.3 W by capacity

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.

6.5W5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Review text: the label reads 3.3V/2.0A and this matches the highest power state, which is pegged at 6.50W. The maker does not publish a power figure. TheSSDReview also reads an active power maximum of 6.5 watts7Reviewthessdreview.com/our-reviews/nvme/biwin-black-opal-4tb-nv7400-gen4-ssd-reviewRead 16 October 2026Review text: active power maximum of 6.5 watts

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.

Not available

Not available

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

Not available

5mW1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Sleep (PS4), 5 mW at every capacity. The datasheet lists no idle figure

Measured

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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.

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14,937MB/s12Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-review/4Read 14 October 20262TB, CrystalDiskMark 8.0.5 default test, read 14,937.44 MB/s. The text does not name SEQ1M Q8T1, which is the first sequential row of the default profile. AMD Ryzen 7 7700X, Gigabyte X670E Aorus Xtreme, drive under the board heatsink, drive wiped with HDDerase v4, five runs per test, firmware 810YRC03

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

Not available

14,103MB/s12Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-review/4Read 14 October 202614,103.28 MB/s, same default test

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.

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124.49MB/s12Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-review/4Read 14 October 2026CrystalDiskMark 8 4K QD1 1 Thread test, read 124.49 MB/s

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.

Not available

339.64MB/s12Reviewkitguru.net/components/ssd-drives/simon-crisp/sandisk-wd_black-sn8100-2tb-gen-5-ssd-review/4Read 14 October 2026Same test, write 339.64 MB/s

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

339GB6Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-review/2Read 16 October 20262TB sample. Iometer sequential write for 15 minutes, 1MiB blocks, queue depth 32: 5.84 GB/s for 58 seconds, which the review calls a 339GB cache. Drive prefilled to 50 percent and tested as a secondary device. Intel Core i9-12900K on an Asus ROG Maximus Z790 Hero, Windows 11 Pro, active cooling unless noted

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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.

2,600MB/s6Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-review/2Read 16 October 20262TB sample. Review text: after the cache the drive writes to TLC at around 2.6 GB/s, stored as 2600. The chart shows the line settle near 2,600 MB/s. The folding state below 900 MB/s and the 15 minute average of 1,344 MB/s are not stored

3,900MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-wd-black-sn8100-2tb-ssd-review/2Read 14 October 20262TB. 15-minute Iometer sequential write. Writes in pSLC mode at over 13.2 GB/s first, then in TLC mode at 3.9 GB/s, before a slower folding mode later. 3.9 GB/s is stored as 3900. Intel Core i9-12900K, Asus ROG Maximus Z790 Hero, drive prefilled to 50%, tested as a secondary device. The cache size is only given as about a third of the capacity, so it is not stored

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.

Not available

6,047points13Reviewstoragereview.com/review/sandisk-wd_black-sn8100-review-elite-performance-in-a-gen5-ssdRead 14 October 20262TB, 3DMark Storage score 6,047. AMD Ryzen 7 9800X3D, Asus ROG Crosshair X870E Hero, 2x16GB G.Skill DDR5-6000, RTX 4090, Windows 11 Pro

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.

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Not available

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".

714mW6Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-review/2Read 16 October 20262TB sample, read from chart. Quarch PPM idle power with ASPM and LPM disabled, 714 mW

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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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Page names a graphene thermal pad and no heatsink. A separate NV7400 Heatsink model with RGB lighting appears only in a Chinese spec sheet from cn.biwintech.com and was not stored5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Review says the drive should operate fine without a heatsink and sees only a graphene label on the sample9Retailer pageamazon.com/dp/B0DM23JKXCRead 16 October 2026Listing bullet reads PMIC power management and graphite heat sink, and a 0.5mm graphene aluminium heat sink. The maker's page and both reviews show only a graphene thermal label on the drive and no heatsink, so bare is stored

Without heatsink, With heatsink2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-heatsink-internal-nvme-ssd.pdfRead 14 October 2026Heatsink version is a separate datasheet with model numbers ending TAH. The bare drives end TAN.

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.

Not available

Yes2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-heatsink-internal-nvme-ssd.pdfRead 14 October 2026The heatsink version has a low-profile anodized aluminum heatsink with an onboard programmable RGB LED. The bare drive datasheet lists no lighting.

Dust and water ratingiPublished IP rating of an external drive.

Not available

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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.

Not available

TCG Opal 2.01Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026TCG Opal 2.0 only, footnote says it needs motherboard BIOS or third-party software to enable. No AES-256 or IEEE 1667 claim in the datasheet

Software

Biwin Intelligence1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Page offers the Biwin Intelligence download (Windows)5Reviewtomshardware.com/pc-components/ssds/biwin-black-opal-nv7400-2tb-ssd-reviewRead 16 October 2026Review names Biwin Intelligence as the drive's software

SanDisk Dashboard1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026Featured software: SANDISK Dashboard (Windows only) and Acronis True Image for SANDISK

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.

PC (no OS named), PS51Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026Text reads broadly compatible with desktops, ultrabooks and gaming laptops, and says the drive can expand and upgrade PS5 storage. No operating system is named, so PC is stored. The maker lists the bare drive with a 0.5 mm graphene thermal pad (no heatsink) for the PS5

Windows3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026Compatibility row reads PCIe 5.0 x4 interface, M.2 2280 port, Windows 10+. No PS5 claim for this drive

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.

Length80Width22Height2.45mm(3.1 × 0.9 × 0.1 in)1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 202680.00 x 22.00 x 2.45 mm (single-sided), the same for all capacities

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-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 20261TB to 4TB: 80 x 22 x 2.38 mm. 8TB: 80 x 22 x 3.88 mm. Length and width vary by 0.15 mm

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.

9g(0.3 oz)1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 20262Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026Published as 9 g or less, so 9 is the stored maximum

7.5g(0.3 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 20267.5 g for 1TB to 4TB, 8.6 g for 8TB, plus or minus 1 g

In the box

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In the box

SSD, Screw, Manual7Reviewthessdreview.com/our-reviews/nvme/biwin-black-opal-4tb-nv7400-gen4-ssd-reviewRead 16 October 2026Review says an installation screw and a screwdriver are in the package. The Amazon listings name a screw and a manual, so only those are stored11Retailer pageamazon.co.uk/dp/B0DM1R7KHZRead 16 October 2026Box Contents reads SSD, SSD Body, Screw, Manual. SSD Body repeats SSD, so SSD, Screw and Manual are stored

SANDISK Optimus GX PRO 8100 NVMe SSD3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026In The Box reads SANDISK Optimus GX PRO 8100 NVMe SSD for each SKU

Cables includediCables supplied with an external drive.

Not available

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Links

Not compared

Product page

www.biwintech.com/product/nv7400-ssd1Maker product pagebiwintech.com/product/nv7400-ssdRead 16 October 2026

www.sandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssd3Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-8100-internal-nvme-ssdRead 14 October 2026

Spec sheet

www.biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdf2Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 2026English two-page spec sheet, PDF dated 2025-09-12 (the page lists it as 2025-09-14)

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-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-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

Manual

www.biwintech.com/wp-content/uploads/2026/03/Biwin-PCIe-SSD-User-Manual_EN_CH_JP_ZH-TW_FR_DE.pdf3Owner's manualbiwintech.com/wp-content/uploads/2026/03/Biwin-PCIe-SSD-User-Manual_EN_CH_JP_ZH-TW_FR_DE.pdfRead 16 October 2026Biwin PCIe SSD Quick Start Guide, English and five other languages, PDF created 2026-03-20. It covers all Biwin PCIe SSDs and does not name the NV7400

Not available

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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Not available

Warranty

0 of 1 differ

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 product pagebiwintech.com/product/nv7400-ssdRead 16 October 20265-year limited warranty, or until the TBW is reached, whichever comes first2Maker spec sheet (PDF)biwintech.com/wp-content/uploads/2025/06/Black-Opal-NV7400-Specifications-1.pdfRead 16 October 20263Owner's manualbiwintech.com/wp-content/uploads/2026/03/Biwin-PCIe-SSD-User-Manual_EN_CH_JP_ZH-TW_FR_DE.pdfRead 16 October 2026Warranty statement: the period ends at the earlier of the warranty term or the TBW threshold. The 5-year term comes from the spec sheet

5years1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-8100-internal-nvme-ssd.pdfRead 14 October 2026

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