SSDs / Compare

Fanxiang S500 Pro vs Silicon Power XPOWER XS70

A

Product A: Fanxiang

S500 Pro

27 of 63 known

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B

Product B: Silicon Power

XPOWER XS70

35 of 63 known

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Every value links to where we found it.

Only differences

AFanxiang S500 Pro

BSilicon Power XPOWER XS70

General

3 of 9 differ

Series

Not available

Not available

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

Not available

SP01KGBP44XS7005, SP01KGBP44XS7005US, SP01KGBP44XS7005SN, SP01KGBP44XS7005AY, SU01KGBP44XS7005SN, SP02KGBP44XS7005, SP02KGBP44XS7005US, SP02KGBP44XS7005SN, SP02KGBP44XS7005AY, SU02KGBP44XS7005SN, SP04KGBP44XS7005, SP04KGBP44XS7005US, SP04KGBP44XS7005SN, SP04KGBP44XS7005AY, SU04KGBP44XS7005SN2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026The price table lists SP01KGBP44XS7005, SP02KGBP44XS7005 and SP04KGBP44XS7005, each also with the suffixes US, SN and AY. No P/N is listed for 8TB. The page does not say what the suffixes mean.4Maker product pagesilicon-power.com/jp/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026The Japanese page lists SU01KGBP44XS7005SN, SU02KGBP44XS7005SN and SU04KGBP44XS7005SN next to the SP codes.

GTIN / EAN

792288883771, 792288883788, 792288883795, 7922888838012Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcle.jsonRead 15 October 2026Store product feed barcodes: 792288883771 (256GB), 792288883788 (512GB), 792288883795 (1TB), 792288883801 (2TB). All four are valid UPC-A codes

4713436146322, 47134361463391Retailer pageox.ee/en/product/3097795Read 15 October 2026ox.ee lists product code SP01KGBP44XS7005 with EAN 4713436146322 for the 1TB. The 2TB page https://www.ox.ee/en/product/3135408 lists SP02KGBP44XS7005 with EAN 4713436146339. Other shops repeat both. No EAN was found for the 4TB, and the 4TB code seen on one shop did not match the others.

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

Not available

17 January 20229Press articleguru3d.com/news-story/silicon-power-releases-xpower-xs70-pcie-gen4-nvme-ssd.htmlRead 15 October 2026Guru3D news dated 2022-01-17 on the XS70 release in 1TB, 2TB and 4TB.

Status

Available1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Fanxiang store sells the 256GB, 512GB, 1TB and 2TB with add to cart

Available2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026The page is live with a purchase tab.

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

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.

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

Black4Retailer pageamazon.com/dp/B0B55TQMFJRead 15 October 2026Color black

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 product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Gallery image reads Slim M.2 2280 form factor

M.2 22802Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20263Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 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.

256 GB, 512 GB, 1 TB, 2 TB1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Capacity selector and gallery image read 256GB, 512GB, 1TB and 2TB. The page tags also list 128GB and 4TB, but no such variant is sold

1 TB, 2 TB, 4 TB, 8 TB2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Capacity row: 1TB, 2TB, 4TB, 8TB. The 8TB capacity has speeds on the page but no P/N.

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 pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Title reads PCIe 3.0 M.2 NVMe SSD and the product label reads PCIe Gen3 x4

PCIe NVMe2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20263Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 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.

31Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Product label and tags read PCIe Gen3 x46Owner's manualixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026Same leaflet table: Interface PCIe Gen 3x4

42Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20263Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

41Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Product label and tags read PCIe Gen3 x46Owner's manualixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026Same leaflet table: Interface PCIe Gen 3x4

42Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20263Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

1.44Retailer pageamazon.com/dp/B0B55TQMFJRead 15 October 2026Current US 1TB listing, Connectivity Technology reads PCIe Gen3x4 NVMe1.4. The 2022 archived listing of the same product says NVMe 1.3 in its table and bullet, so Fanxiang's listings conflict. The newer 1.4 matches the version the drive reports itself in CrystalDiskInfo (see the iXBT review)5Reviewixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026CrystalDiskInfo 8.17.14 screenshot of the 1TB, firmware SN11795: Standard NVM Express 1.4, PCIe 3.0 x4

1.42Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Feature list: NVMe 1.4 support. Interface row: PCIe Gen4 x4.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

Not available

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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 MAP12025Reviewixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026iXBT Live user blog review of the 1TB, dated 2024-03-07. Its spec table, copied from the maker's store, lists Maxio MAP1202A-F1C. The teardown text reads a DRAM-less Maxio MAP1202C-F1C. The family name Maxio MAP1202 is stored. The review names no flash maker. The four flash chips are marked LGLY256G09CB112Reviewssd-tester.com/fanxiang_s500_pro_1tb.htmlRead 21 October 2026The page's table lists Maxio MAP1202 as manufacturer information, which agrees with the iXBT teardown family name

Phison E186Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026Specification table: Phison PS5018-E18, Micron 176L TLC, DDR4. A commenter on the review claims newer 2TB units no longer use the E18. This was not verified. The review is from April 2022.

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 pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads 3D NAND technology and high-quality TLC particles12Reviewssd-tester.com/fanxiang_s500_pro_1tb.htmlRead 21 October 2026The same table lists TLC

TLC6Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026

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

Not available

Micron B47R TLC6Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026Text: Micron's 176-layer B47R TLC NAND.

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

Not available

1766Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026

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, HMB not stated5Reviewixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026The teardown text calls the Maxio controller DRAM-less. No source says whether the drive uses host memory, so HMB not stated is stored12Reviewssd-tester.com/fanxiang_s500_pro_1tb.htmlRead 21 October 2026The same table lists DRAM cache No. It says nothing about host memory, which agrees with HMB not stated

DRAM2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Feature list: supports DRAM Cache Buffer.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

2GB6Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 20262TB sample: SK hynix DDR4 in the 512M x 16b configuration, two 1GB modules, 2GB in total.

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.

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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.

3,500MB/s1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads up to 3500/3000MB/s. The 2TB row stores this page-level figure, since the maker prints no 2TB-specific table. Test conditions are not stated3Retailer pageweb.archive.org/web/20221123020954/https://www.amazon.com/dp/B0B55TQMFJRead 15 October 2026Fanxiang's brand comparison table on that listing, Performance (Read/Write): 2,800/2,000 MB/s (256GB), 3,200/2,800 MB/s (512GB) and 3,500/3,000 MB/s (1TB). The table has no 2TB column. The same listing's bullet says up to 3500/3000MB/s for the 1TB

7,300MB/s2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Performance Read (max.): 7300 (1TB, 2TB, 8TB), 7200 (4TB). Base is the 2TB model. The page note says speeds vary with hardware, software and interface mode. No test tool is named.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026Performance Read (max.): up to 7,300MB/s. Footnote says speed varies with hardware, software and interface mode.

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

3,000MB/s1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads up to 3500/3000MB/s. The 2TB row stores this page-level figure3Retailer pageweb.archive.org/web/20221123020954/https://www.amazon.com/dp/B0B55TQMFJRead 15 October 2026Same comparison table

6,800MB/s2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Performance Write (max.): 6000 (1TB), 6800 (2TB and 4TB), 6600 (8TB).3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026Performance Write (max.): up to 6,800MB/s.

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.

Not available

1,000,000IOPS6Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026Specification table: Random Read 750,000 (1TB), 1,000,000 (2TB), 940,000 (4TB). The maker pages do not state IOPS. Guru3D prints the same table. The review does not state the queue depth.

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.

Not available

1,000,000IOPS6Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-reviewRead 15 October 2026Specification table: Random Write 1,000,000 IOPS for 1TB, 2TB and 4TB.

Endurance and reliability

2 of 3 differ

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

1,280TB1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads up to 640 TBW, which is the 1TB figure. A gallery image reads 1280 TBW next to a 3 year warranty badge and is read as the 2TB figure3Retailer pageweb.archive.org/web/20221123020954/https://www.amazon.com/dp/B0B55TQMFJRead 15 October 2026Same comparison table: 200 TBW (256GB), 320 TBW (512GB) and 640 TBW (1TB). The 2TB figure is the maker page's 1280

1,400TB5Maker spec sheet (PDF)silicon-power.com/document/ssd_tbwRead 15 October 2026Silicon Power SSD TBW table, file dated 2026-08-05, PCIe M.2 SSDs, XS70 row: 700 TB (1TB), 1400 (2TB), 3000 (4TB), 6000 (8TB). The base is the 2TB model.

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.

1,500,000h7Spec databasedetail.zol.com.cn/solid_state_drive/index1428046.shtmlRead 21 October 2026ZOL (Zhongguancun Online) spec page for the S500 PRO 1TB sold in China, read in Chrome: Mean time between failures 150万小时, which is 1.5 million hours. The page names the exact model, so it is MTBF and not MTTF. It lists 3500 MB/s read and 3150 MB/s write, so it is the China-market listing. The global store and Amazon pages state no MTBF. Stored on the base only, so every capacity inherits it8Press articleithome.com/0/673/093.htmRead 21 October 2026ITHome deal article dated 13 February 2023 on the S500 Pro 2TB in China, repeating the maker's JD.com copy: 平均无故障工作时间 150 万小时, 1.5 million hours MTBF, with a 5 year warranty. ITHome articles 0/678/135 and 0/683/594 repeat the same line. The same copy claims Yangtze Memory flash and 3500/3150 MB/s, which conflict with the global pages and the iXBT teardown chip markings, so no flash maker is stored. Two sources, for the 1TB and the 2TB, give the same MTBF

1,600,000h2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026MTBF (est) 1,600,000 hours. The data sheet says MTBF 1,600,000 hours.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

Min0Max70°C3Retailer pageweb.archive.org/web/20221123020954/https://www.amazon.com/dp/B0B55TQMFJRead 15 October 2026Comparison table and bullet read Operating Temperature 0 - 70 C

Min0Max70°C2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20263Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 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

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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.

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

8 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.

3,591MB/s9Reviewssd-tester.com/fanxiang_s500_pro_256gb.htmlRead 21 October 2026256GB model, tested 10 January 2023. CrystalDiskMark 7.0.0 x64, 1 pass, 4 GiB test file, run on an empty drive (D: 0 percent used). The page names no port and no host. KitGuru and Tom's Hardware have not reviewed this drive, so this reviewer is used. SEQ1M Q8T1 read 3634.68 MB/s10Reviewssd-tester.com/fanxiang_s500_pro_512gb.htmlRead 21 October 2026512GB model, tested 24 January 2023. CrystalDiskMark 7.0.0 x64, 1 pass, 4 GiB test file, run on an empty drive (D: 0 percent used). The page names no port and no host. KitGuru and Tom's Hardware have not reviewed this drive, so this reviewer is used. SEQ1M Q8T1 read 3651.09 MB/s11Reviewssd-tester.com/fanxiang_s500_pro_2tb.htmlRead 21 October 20262TB model, tested 19 December 2023. CrystalDiskMark 7.0.0 x64, 1 pass, 4 GiB test file, run on an empty drive (D: 0 percent used). The page names no port and no host. KitGuru and Tom's Hardware have not reviewed this drive, so this reviewer is used. SEQ1M Q8T1 read 3591.01 MB/s

Not available

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

3,055MB/s9Reviewssd-tester.com/fanxiang_s500_pro_256gb.htmlRead 21 October 2026256GB model. Same run, SEQ1M Q8T1 write 1353.19 MB/s. It is below Fanxiang's 2000 MB/s up-to claim for this size, and the drive was empty10Reviewssd-tester.com/fanxiang_s500_pro_512gb.htmlRead 21 October 2026512GB model. Same run, SEQ1M Q8T1 write 2764.31 MB/s11Reviewssd-tester.com/fanxiang_s500_pro_2tb.htmlRead 21 October 20262TB model. Same run, SEQ1M Q8T1 write 3054.6 MB/s

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.

62.11MB/s9Reviewssd-tester.com/fanxiang_s500_pro_256gb.htmlRead 21 October 2026256GB model. Same run, RND4K Q1T1 read 65.5 MB/s, printed as MB/s10Reviewssd-tester.com/fanxiang_s500_pro_512gb.htmlRead 21 October 2026512GB model. Same run, RND4K Q1T1 read 67.92 MB/s, printed as MB/s11Reviewssd-tester.com/fanxiang_s500_pro_2tb.htmlRead 21 October 20262TB model. Same run, RND4K Q1T1 read 62.11 MB/s, printed as MB/s

Not available

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.

169.06MB/s9Reviewssd-tester.com/fanxiang_s500_pro_256gb.htmlRead 21 October 2026256GB model. Same run, RND4K Q1T1 write 170.14 MB/s, printed as MB/s10Reviewssd-tester.com/fanxiang_s500_pro_512gb.htmlRead 21 October 2026512GB model. Same run, RND4K Q1T1 write 174.75 MB/s, printed as MB/s11Reviewssd-tester.com/fanxiang_s500_pro_2tb.htmlRead 21 October 20262TB model. Same run, RND4K Q1T1 write 169.06 MB/s, printed as MB/s

Not available

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

170GB9Reviewssd-tester.com/fanxiang_s500_pro_256gb.htmlRead 21 October 2026256GB model. HD Tune Pro long-term test, 100 GB file written: the text reads that after approx. 40 GB the cache was full and performance was throttled. The table also lists the pSLC cache as approx. 40 GB.10Reviewssd-tester.com/fanxiang_s500_pro_512gb.htmlRead 21 October 2026512GB model. HD Tune Pro long-term test, 100 GB file written: the text reads that after approx. 62 GB the cache was full and performance was throttled. The table also lists the pSLC cache as approx. 62 GB. Fanxiang's Amazon table claims 3200 MB/s read for this size and this reviewer measured about 3650 MB/s, in line with the 1TB and 2TB runs, so that claim looks conservative.11Reviewssd-tester.com/fanxiang_s500_pro_2tb.htmlRead 21 October 20262TB model. HD Tune Pro long-term test, 300 GB file written: the text reads that after approx. 170 GB the cache was full and performance was throttled. The table also lists the pSLC cache as approx. 170 GB. The 2TB result is also stored on the base, since the base describes the 2TB model.

220GB7Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-review/2Read 15 October 20262TB with fitted heatsink. Iometer sequential write for 15 minutes: about 6.9 GB/s for up to 32 seconds, so a cache of roughly 220 GB. Intel Core i9-11900K on ASRock Z590 Taichi, drive prefilled to 50 percent, secondary drive.

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.

Not available

3,900MB/s7Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-review/2Read 15 October 20262TB, read from chart. After the cache the sustained write line holds about 3.9 GB/s, from roughly 35 s to 420 s, before the slower folding state. Read from the 900 second line chart.

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

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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.

Not available

73°C7Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-review/2Read 15 October 20262TB with fitted heatsink, active cooling unless noted. Text: temperatures as high as 73 C with no throttling. The review does not state the duration of the test for this reading. The heatsink ran hotter than the Inland Gaming Performance Plus.

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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826mW7Reviewtomshardware.com/reviews/silicon-power-xpower-xs70-review/2Read 15 October 20262TB, read from chart. Quarch PPM idle power with ASPM and LPM disabled: 826 mW.

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 pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads graphene heat dissipation stickers, which is a thermal label and counts as bare

With heatsink2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026The drive is sold with its aluminum heatsink fitted. The page lists no version without heatsink.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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

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SP ToolBox2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Free download of SP ToolBox. Tom's Hardware reported no software at review time.

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.

Windows, macOS1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Description reads compatible with Windows 7, 8, 10, 11, macOS 10.9 and later. The board needs an M.2 interface

PC (no OS named), PS52Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026System Requirement: a computer with M.2 slots supporting the PCIe interface and an OS with NVMe support, so no OS is named. Feature list: compatible with PlayStation 5, and the size and performance meet PS5 requirements. The drive carries its own heatsink.

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.

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Length80Width24.6Height10.8mm(3.1 × 1 × 0.4 in)2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Dimensions row reads 24.6mm x 80.0mm x 10.8mm, with the heatsink fitted. One value for every capacity.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 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.

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33g(1.2 oz)2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026Weight 33g, one value for every capacity.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

In the box

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In the box

M.2 SSD, Mounting screw, Screwdriver, Instruction leaflet1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Gallery images read the package contains mounting screws and a screwdriver3Retailer pageweb.archive.org/web/20221123020954/https://www.amazon.com/dp/B0B55TQMFJRead 15 October 2026Bullet reads installation screws and screwdrivers are included in the product package. The comparison table row reads Provide installation tools4Retailer pageamazon.com/dp/B0B55TQMFJRead 15 October 2026Bullet reads the product packaging includes mounting screws and screwdrivers5Reviewixbt.com/live/platform/obzor-kitayskogo-m2-nvme-nakopitelya-fanxiang-s500pro-chestnye-3500-mb-s-i-pcie30x4.htmlRead 15 October 2026Unboxing text and photos: the drive, one screw under a seal, a screwdriver and a printed instruction leaflet

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Cables includediCables supplied with an external drive.

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Links

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Product page

www.fanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcle1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026

www.silicon-power.com/product-detail/PCIe_Gen_4x4_XS702Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 2026

Spec sheet

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www.silicon-power.com/download-detail/edm-xs703Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026One-page e-DM issued May 11, 2023. It lists 1TB to 8TB, speeds up to 7,300 and 6,800 MB/s and no per-capacity values, controller, flash or TBW.

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.

3years1Maker product pagefanxiangssd.com/products/internal-solid-state-drive-fanxiang-s500-nvme-ssd-pcleRead 15 October 2026Gallery image shows a 3 years warranty badge. The leaflet in the retail box says five years under Chinese quality regulations, so the maker's documents conflict. The web page badge and the Amazon listing both say 3 years4Retailer pageamazon.com/dp/B0B55TQMFJRead 15 October 2026Bullet reads a 3-year quality assurance service

5years2Maker product pagesilicon-power.com/product-detail/PCIe_Gen_4x4_XS70Read 15 October 20265-year limited warranty, based on TBW or the warranty period.3Maker spec sheet (PDF)silicon-power.com/download-detail/edm-xs70Read 15 October 2026

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