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Sandisk Optimus GX PRO 850P vs TeamGroup MP44Q

A

Product A: Sandisk

Optimus GX PRO 850P

42 of 63 known

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B

Product B: TeamGroup

MP44Q

36 of 63 known

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Only differences

ASandisk Optimus GX PRO 850P

BTeamGroup MP44Q

General

4 of 9 differ

Series

Optimus GX PRO2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026Maker line name is SANDISK Optimus GX PRO

Not available

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

SDSG81100TAH-000E0, SDSG81100TAH, SDSG81200TAH-000E0, SDSG81200TAH, SDSG81400TAH-000E0, SDSG81400TAH, SDSG81800TAH-000E0, SDSG81800TAH, WDBBYV0010BNC-WRSN, WDBBYV0020BNC-WRSN, WDBBYV0040BNC-WRSN1Maker 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-850p-nvme-ssd.pdfRead 23 October 2026Model numbers SDSG81100TAH, SDSG81200TAH, SDSG81400TAH and SDSG81800TAH. The product page adds the -000E0 suffix. The WD_BLACK SN850P numbers are from the Western Digital data sheet2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026SKUs SDSG81100TAH-000E0, SDSG81200TAH-000E0, SDSG81400TAH-000E0 and SDSG81800TAH-000E03Maker spec sheet (PDF)cdn.thefpsreview.com/wp-content/uploads/2023/06/WD_BLACK-SN850P-Datasheet.pdfRead 23 October 2026WD_BLACK SN850P NVMe SSD for PS5 consoles data sheet (June 2023, copy hosted by The FPS Review): 1TB WDBBYV0010BNC-WRSN, 2TB WDBBYV0020BNC-WRSN, 4TB WDBBYV0040BNC-WRSN. Same speeds, TBW and 5-year warranty as the Sandisk data sheet. The 8TB model of that line is not in this data sheet and its number is not stored

TM8FFD001T0C101, TM8FFD002T0C101, TM8FFD004T0C101, TM8FFD008T0C1011Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026TEAM P/N column: TM8FFD001T0C101 (1TB), TM8FFD002T0C101 (2TB), TM8FFD004T0C101 (4TB) and TM8FFD008T0C101 (8TB)2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026Ordering information table lists 1TB, 2TB, 4TB and 8TB with their Team P/N

GTIN / EAN

619659232054, 619659232047, 619659232030, 6196592320232Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026UPC in the page data: 619659232054 (1TB), 619659232047 (2TB), 619659232030 (4TB), 619659232023 (8TB)

4711430802824, 4711430802817, 47114308027566Spec databasebuildcores.com/products/Storage/4i5nwix18/TEAMGROUP-MP44Q-1TB-SSD-M.2-PCIe-4.0-NVMeRead 14 October 20261TB TM8FFD001T0C101: UPC and EAN 4711430802824. Searches of retailer listings give 4711430802817 for the 2TB TM8FFD002T0C101 (BuildCores 2TB page, Geeknetic) and 4711430802756 for the 4TB TM8FFD004T0C101 (BuildCores 4TB page, Avoira). No code found for the 8TB

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

7 June 20234Press articlethefpsreview.com/2023/06/08/western-digital-launches-wd_black-sn850p-nvme-ssd-for-ps5-consoles-including-4-tb-version-for-549-99Read 23 October 2026The FPS Review, 8 June 2023: Western Digital launches the WD_BLACK SN850P, available through its web store and participating retailers, 4TB at $549.99. TechRadar and ComputerBase published on 7 June 2023, which is stored

18 April 20247Press articleguru3d.com/story/team-group-launches-mp44q-m2-gen-4-nvme-ssd-featuring-advanced-3d-qlc-nand-technologyRead 14 October 2026Guru3D article dated 18 April 2024 covers the TEAMGROUP launch announcement. KitGuru dated it 19 April 2024

Status

Available2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026Product page lists four capacities. The page prices are current store prices and are not used

Available1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Listed on the maker site with a 2026 Q3 product catalog

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.

$249.995Press articletechradar.com/news/wd-blacks-latest-ssd-for-ps5-is-here-and-its-not-cheapRead 23 October 2026TechRadar, 7 June 2023: 1TB $159.99, 2TB $249.99, 4TB $549.99, US. Tom's Guide reported $149 and $229 for 1TB and 2TB at the same launch, which differs. Not stated as MSRP, but the launch price of the WD_BLACK SN850P. Sandisk's 2026 Optimus listing prices are higher and are not launch prices of this hardware

Not available

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.

€221.996Press articlecomputerbase.de/2023-06/wd-black-sn850p-die-sn850x-ssd-kostet-mit-ps5-lizenz-deutlich-mehrRead 23 October 2026ComputerBase, 7 June 2023: the WD_BLACK SN850P is available from the maker's shop at 138.99 EUR (1TB), 221.99 EUR (2TB) and 463.99 EUR (4TB), Germany, including VAT. No euro price found for the 8TB

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

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Form factor row reads M.2 2280-S3-M for 1TB and 2TB and M.2 2280-D5-M for 4TB and 8TB

M.2 22801Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 20262Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.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.

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-850p-nvme-ssd.pdfRead 23 October 20261GB = 1 billion bytes and 1TB = 1 trillion bytes. Capacities 1TB, 2TB, 4TB, 8TB

1 TB, 2 TB, 4 TB, 8 TB1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Capacity column 1TB, 2TB, 4TB and 8TB. Note 1 says 1GB equals 1,000,000,000 bytes and 1TB equals 1,000,000,000,000 bytes2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Interface row reads PCIe 4.0 x4 NVMe 1.4. Footnote 9: backwards compatible with PCIe 3.0 x4, 3.0 x2, 3.0 x1, 2.0 x4, 2.0 x2 and 2.0 x1

PCIe NVMe1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Interface row reads PCIe Gen4 x4 with NVMe. The page gives no NVMe version2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026

41Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026PCIe Gen4 x4 with NVMe2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026

41Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026PCIe Gen4 x4 with NVMe2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.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.

1.41Maker 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-850p-nvme-ssd.pdfRead 23 October 2026Interface row reads PCIe 4.0 x4 NVMe 1.4

1.43Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Spec table reads PCIe 4.0 x4 and NVMe 1.4 for 1TB, 2TB and 4TB. The maker states no version

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

Not available

Not available

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 in-house9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 2026Specifications table reads Sandisk Proprietary for every capacity. The maker names no controller

Maxio MAP1602A3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Spec table reads Maxio MAP1602 and the PCB carries a MAP1602 marking. Wccftech and PCWorld name it MAP1602A, which is stored to match the other Maxio drives4Reviewpcworld.com/article/2573282/teamgroup-mp44q-nvme-ssd-review-host-memory-bus-champ-with-a-caveat.htmlRead 14 October 2026Spec table reads Maxio MAP-1602A5Reviewwccftech.com/review/teamgroup-mp44q-2-tb-nvme-ssd-review-qlc-to-the-maxRead 14 October 2026Reads Maxio MAP1602A-F3C

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026NAND row reads SANDISK TLC 3D NAND. The data sheet gives no flash generation or layer count

QLC1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Page says the SSD uses 3D QLC NAND, with capacities up to 8TB

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

Not available

YMTC 232-layer QLC3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Spec table reads YMTC 232-Layer QLC for 1TB, 2TB and 4TB. The 8TB is not covered5Reviewwccftech.com/review/teamgroup-mp44q-2-tb-nvme-ssd-review-qlc-to-the-maxRead 14 October 2026Teardown says the four flash ICs are YMTC 232-layer 3D QLC with 512 GB each. The spec section of the same page names Micron, which contradicts its own teardown

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

Not available

2323Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026232-Layer from the same spec table5Reviewwccftech.com/review/teamgroup-mp44q-2-tb-nvme-ssd-review-qlc-to-the-maxRead 14 October 2026232-layer

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.

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-850p-nvme-ssd.pdfRead 23 October 2026DRAM cache row reads Yes. The data sheet gives no size

None, uses host memory (HMB)1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026DRAM Cache column reads NO for every capacity. The maker does not mention HMB. Reviews read HMB, so hmb is stored2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026DRAM Cache row reads NO3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Spec table reads N/A (HMB) for all three tested capacities4Reviewpcworld.com/article/2573282/teamgroup-mp44q-nvme-ssd-review-host-memory-bus-champ-with-a-caveat.htmlRead 14 October 2026Reads DRAM-less with a host memory buffer design5Reviewwccftech.com/review/teamgroup-mp44q-2-tb-nvme-ssd-review-qlc-to-the-maxRead 14 October 2026Reads DRAM-less with HMB

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.

1GB9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 20262TB sample has 1GB of DDR4 DRAM, half the usual 2GB and half of the review's 2TB WD_BLACK SN850X sample. Other capacities are not stated. The flash is likely BiCS5, but the review hedges and says BiCS6 is possible, so no flash generation is stored

Not available

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Module code in the form factor row: S means single-sided and D means double-sided. 1TB and 2TB are 2280-S3-M, 4TB and 8TB are 2280-D5-M. Tom's Hardware also says the bare drive is single-sided at 1TB and 2TB and double-sided at 4TB and 8TB

Single-sided3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Spec table reads M.2 2280 (Single-sided) for 1TB, 2TB and 4TB. Text says the drive is single-sided at all capacities. The 8TB is not covered

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.

7,300MB/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-850p-nvme-ssd.pdfRead 23 October 2026Up to 7,300 MB/s for 1TB, 2TB and 4TB and 7,200 MB/s for 8TB. Sequential read 1MB, queue depth 8, 1 thread. Based on internal testing, host not named

7,000MB/s1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Sequential read column reads 7,000 MB/s for all four capacities. Note says the figures come from CrystalDiskMark on a completely new drive and vary with the hardware and software. The launch coverage printed up to 7,400 MB/s, so the maker's current figure is used2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026Performance row, CrystalDiskMark: read up to 7,000 MB/s for 1TB to 8TB

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

6,600MB/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-850p-nvme-ssd.pdfRead 23 October 2026Up to 6,300 MB/s (1TB) and 6,600 MB/s (2TB, 4TB, 8TB). Queue depth 8, 1 thread. Internal testing, so inside the fast write cache

5,900MB/s1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Sequential write column reads 5,900 MB/s for all four capacities, with SLC caching. The launch coverage printed 6,500 MB/s and 6,200 MB/s for the 1TB2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026Performance row: write up to 5,900 MB/s for 1TB to 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.

1,200,000IOPS1Maker 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-850p-nvme-ssd.pdfRead 23 October 2026Random read 4KB up to 800K IOPS (1TB) and 1.2M IOPS (2TB, 4TB, 8TB). Queue depth 32, 16 threads. 1.2M is 1200000

Not available

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.

1,100,000IOPS1Maker 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-850p-nvme-ssd.pdfRead 23 October 2026Random write 4KB up to 1.1M IOPS (1TB, 2TB, 4TB) and 1.2M IOPS (8TB). Queue depth 32, 16 threads

Not available

Endurance and reliability

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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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026600 TB (1TB), 1,200 TB (2TB), 2,400 TB (4TB), 4,800 TB (8TB). JEDEC client workload JESD219. Warranty is 5 years or the TBW limit, whichever comes first

1,000TB1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Terabyte Written column: 500 (1TB), 1000 (2TB), 2000 (4TB) and 4000 (8TB) TBW. Note says TBW follows JEDEC definitions and the warranty ends at the time limit or the TBW, whichever comes first. Launch coverage printed 512 TBW per TB2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Published as MTTF up to 1.75M hours, Telcordia SR-332 stress testing at 25 C. Stored as 1750000

1,600,000h1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026MTBF row reads 1,600,000 Hours2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 202632 to 185 F (0 to 85 C), as reported by the drive. The non-operating range of -40 to 85 C is not stored

Min0Max70°C1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Operation Temperature 0 to 70 C. The storage range of -40 to 85 C is not stored2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

Power

None of 6 known

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

Not available

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

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.

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

Not available

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.

6,978MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB with the PlayStation heatsink. CrystalDiskMark peak sequential read 1MB QD8: 6,978 MB/s, read from the chart. KitGuru has no review of this drive, so Tom's Hardware is the CrystalDiskMark source. Intel Core i9-12900K, Asus ROG Maximus Z790 Hero, drive prefilled to 50 percent and tested as a secondary drive with active cooling. The test file size is not stated in the review

7,126MB/s3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Review chart Crystal Disk Mark Peak Sequential Read 1MB QD8, 7,126 MB/s. Test platform: Intel Core i9-12900K and Asus ROG Maximus Z790 Hero, Windows 11 Pro, drive prefilled to 50 percent as a secondary drive, active cooling. Thread count is not stated on the chart

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

6,391MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Peak sequential write 1MB QD8: 6,391 MB/s, same bench

6,517MB/s3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Chart Crystal Disk Mark Peak Sequential Write 1MB QD8, 6,517 MB/s. Same platform

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.

95.56MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Random read 4KB QD1: 23,329 IOPS, read from the chart, stored as IOPS x 4096 / 1,000,000, which is 95.56 MB/s

93.39MB/s3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Chart Crystal Disk Mark Random Read 4KB QD1 reads 22,800 IOPS, stored as 22,800 x 4096 / 1,000,000 = 93.39 MB/s. Same platform

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.

403.61MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Random write 4KB QD1: 98,538 IOPS, read from the chart, stored as 403.61 MB/s

346.75MB/s3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Chart Crystal Disk Mark Random Write 4KB QD1 reads 84,656 IOPS, stored as 84,656 x 4096 / 1,000,000 = 346.75 MB/s. Same platform

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

595GB10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB. Iometer sequential write for 15 minutes: over 6.46 GB/s for just over 92 seconds, a cache of 595GB

500GB3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Text says the cache is around 500GB, roughly where the drive falls after writing at 5.75 GB/s for 86 seconds in a 15-minute Iometer sequential write at QD32 with 1MiB blocks. The drive was prefilled to 50 percent. Faceofit reports about 465 GB and is not used

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.

1,600MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026After the cache the drive writes to native TLC at 1.6 GB/s. The text gives a rounded figure

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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.

54°C10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB with the heatsink fitted: maximum temperature 54 C on the drive's primary composite sensor, about 22 C ambient, active cooling on the bench. The review does not describe the test behind the figure. Tom's Hardware runs its 15-minute sequential write test on every drive and says its testing is meant to heat the drive to a realistic ceiling

56°C3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Text says the drive hit a maximum of 56 C during the write test with about 22 C ambient. The drive carries only its graphene label and the lab used active cooling unless noted. The sustained write test ran 15 minutes

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".

1,220mW10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB. Quarch PPM idle power with ASPM/LPM disabled, 1,220 mW, read from chart

750mW3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 20262TB. Quarch PPM idle power with ASPM and LPM disabled, 750.0 mW, printed on the chart

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.

With heatsink1Maker 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-850p-nvme-ssd.pdfRead 23 October 2026Every model has the exclusive PlayStation heatsink. No bare version is sold

Without heatsink1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026No heatsink version is listed. The drive has a graphene heat dissipation label under 1mm thick that works with the motherboard heatsink

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.

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Software

SanDisk Dashboard9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 2026Sandisk Dashboard, an SSD toolbox, and Acronis True Image for Sandisk. The heatsink has no RGB

TEAM SMART TOOL1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Page text names the patented S.M.A.R.T. monitoring software and the warranty notes call it TEAM SMART TOOL. Tom's Hardware calls the download SSD S.M.A.R.T. Tool3Reviewtomshardware.com/pc-components/ssds/teamgroup-mp44q-2tb-ssd-reviewRead 14 October 2026Site offers an SSD S.M.A.R.T. Tool download

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.

PS5, Windows1Maker 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-850p-nvme-ssd.pdfRead 23 October 2026System compatibility row reads PlayStation 5, PlayStation 5 Pro, Windows 10+. Footnote 10: PC compatibility is not tested or endorsed by Sony Interactive Entertainment

Windows, Linux1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Operating System row: Windows 11 / 10 / 8.1 / 8 / 7 / Vista or later and Linux 2.6.33 or later, on Intel and AMD platforms2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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.

Length80Width24.46Height9.89mm(3.1 × 1 × 0.4 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-850p-nvme-ssd.pdfRead 23 October 2026Drive with its PlayStation heatsink. Length 80 mm and width 24.46 mm for every capacity, height 9.89 mm for 1TB and 2TB and 10.31 mm for 4TB and 8TB. Footnote 8: length and width vary by +/-0.5 mm. Base is the 2TB

Length80Width22Height3.7mm(3.1 × 0.9 × 0.1 in)1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Dimensions row reads 80.0(L) x 22.0(W) x 3.7(H) mm2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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.

24g(0.8 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-850p-nvme-ssd.pdfRead 23 October 202624 g for 1TB and 2TB and 30.4 g for 4TB and 8TB, with heatsink. Footnote 8: weight varies by +/-10 percent. The Sandisk product page and the WD_BLACK SN850P data sheet give 30.4 g for 1TB and 2TB as well. The newer Sandisk data sheet is stored

7g(0.2 oz)1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026Weight row reads 7g2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

In the box

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In the box

SANDISK Optimus GX PRO 850P NVMe SSD2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026In The Box reads SANDISK Optimus GX PRO 850P NVMe SSD, the same on every capacity

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Cables includediCables supplied with an external drive.

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Links

Not compared

Product page

www.sandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssd2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026

www.teamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C1011Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 2026The page for one capacity shows the table for all four. The 1TB page carries the same table

Spec sheet

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-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-850p-nvme-ssd.pdfRead 23 October 2026SANDISK Optimus GX PRO 850P data sheet, 2026 copyright. It covers 1TB, 2TB, 4TB and 8TB. The product line was sold as the WD_BLACK SN850P from June 2023, see the Western Digital data sheet source

images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdf2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026Two-page English spec sheet. It says the official website prevails when they differ

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-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 20265 years or the maximum endurance (TBW) limit, whichever occurs first. The data sheet is global and names no market

5years1Maker product pageteamgroupinc.com/en/product-detail/ssd/TEAMGROUP/mp44q/mp44q-TM8FFD002T0C101Read 14 October 20265-year limited warranty on every capacity. The page says the term may not apply in some countries or states under local law2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/m2/mp44q/spec-sheet/mp44q-en.pdfRead 14 October 2026

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