SSDs / Compare

Silicon Power Ace A55 vs Western Digital WD Blue SA510

A

Product A: Silicon Power

Ace A55

19 of 63 known

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B

Product B: Western Digital

WD Blue SA510

29 of 63 known

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Every value links to where we found it.

Only differences

ASilicon Power Ace A55

BWestern Digital WD Blue SA510

General

2 of 9 differ

Series

Not available

WD Blue1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026The page title and copy name the drive WD Blue SA510 SATA SSD, part of the WD Blue range

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

SP128GBSS3A55S25, SPJ128GBSS3A55B, SU128GBSS3A55S25EU, SP256GBSS3A55S25, SPJ256GBSS3A55B, SU256GBSS3A55S25EU, SU256GBSS3A55S25AH, SP512GBSS3A55S25, SPJ512GBSS3A55B, SU512GBSS3A55S25EU, SP001TBSS3A55S25, SPJ001TBSS3A55B, SU001TBSS3A55S25EU, SU001TBSS3A55S25AC, SP002TBSS3A55S25, SPJ002TBSS3A55B, SU002TBSS3A55S25EU, SU002TBSS3A55S25SN, SP004TBSS3A55S25, SPJ004TBSS3A55B, SP004TBSS3A55S25AY, SP008TBSS3A55S25, SP016TBSS3A55S251Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026The price table lists a P/N per capacity. Each capacity has an SP, an SPJ and an SU code, and some have a regional suffix such as EU, AC, SN or AY. The page does not say what the prefixes and suffixes mean. They are stored as one list per capacity.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026Ordering Information lists only 2TB SP002TBSS3A55S25, 4TB SP004TBSS3A55S25, 8TB SP008TBSS3A55S25 and 16TB SP016TBSS3A55S25, and says more part numbers are available from sales.3Maker product pageweb.archive.org/web/20251216203842/https://sp-siliconpower.com/products/a55-128gb-2tb-sata-iii-2-5-inch-internal-solid-state-driveRead 21 October 2026The US store sells the 256GB as SU256GBSS3A55S25AH, a code that the global page does not list. It is added to the 256GB list

WDS250G3B0A, WDS500G3B0A, WDS100T3B0A, WDS200T3B0A, WDS400T3B0A, WDS500G5B0A, WDS100T5B0A, WDS200T5B0A, WDS400T5B0A1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026Spec blocks list WDS250G3B0A (250GB), WDS500G5B0A (500GB), WDS100T5B0A (1TB), WDS200T5B0A (2TB) and WDS400T3B0A (4TB). The store SKU suffixes -00AXR0, -00LMP0 and -00C7K0 are not stored. The 5B0A codes are a newer series than the 3B0A codes of the 2022 product brief. Both series are stored as variant rows because their claims differ3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026German copy of the Western Digital product brief for the WD Blue SA510 (document code 02-00-WW-04-000064-AE02, September 2022, PDF made 2023-05-18), hosted by the retailer Bechtle. The maker's own copy returned 404. It lists the 2.5 inch codes WDS250G3B0A, WDS500G3B0A, WDS100T3B0A, WDS200T3B0A and WDS400T3B0A, and the M.2 2280 codes WDS...3B0B, which are another product

GTIN / EAN

886576030425, 886576078304, 886576030449, 886576030456, 886576037912, 8865760696783Maker product pageweb.archive.org/web/20251216203842/https://sp-siliconpower.com/products/a55-128gb-2tb-sata-iii-2-5-inch-internal-solid-state-driveRead 21 October 2026Variant barcodes from the store page data of the same capture: 886576030425 (128GB, SP128GBSS3A55S25), 886576078304 (256GB, SU256GBSS3A55S25AH), 886576030449 (512GB, SP512GBSS3A55S25), 886576030456 (1TB, SP001TBSS3A55S25), 886576037912 (2TB, SP002TBSS3A55S25), 886576069678 (4TB, SP004TBSS3A55S25). These are 12-digit UPCs for the US store. EAN barcodes for other markets are not stored, since the retailer listings that show them disagree on the part number

718037884622, 718037884639, 7180378846536Retailer pageldlc.com/en/product/PB00503709.htmlRead 20 October 2026LDLC sheet for WDS100T3B0A (1TB, 2.5 inch). The EAN 0718037884653 is the UPC 7180378846537Retailer pageldlc.com/en/product/PB00503711.htmlRead 20 October 2026LDLC sheet for WDS500G3B0A-00AXR0 (500GB, 2.5 inch). The EAN 0718037884639 is the UPC 7180378846398Retailer pagekomputronik.pl/product/773712/wd-blue-sa510-250gb.htmlRead 20 October 2026Komputronik sheet for WDS250G3B0A (250GB), EAN 718037884622. No GTIN was found for the 2TB, 4TB or the 5B0A codes

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

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Status

Available1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026The page is live and lists the drive with a purchase tab.

Available1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026The Sandisk US page lists the drive with per-capacity spec blocks and a data sheet link. Western Digital sold this drive. The page is now on sandisk.com and says Powered by Sandisk

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

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

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

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

Not available

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

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ColoursiThe maker's own colour names

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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.

2.5-inch1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 20262Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

2.5-inch1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 20262.5-Inch row in every block. The title reads 2.5 inch 7mm cased. The M.2 2280 SA510 (WDS...3B0B) is a separate product

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.

128 GB, 256 GB, 512 GB, 1 TB, 2 TB, 4 TB, 8 TB, 16 TB1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Capacity row reads 128GB, 256GB, 512GB, 1TB, 2TB, 4TB, 8TB, 16TB. The datasheet footnote says 1GB equals 1 billion bytes.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

250 GB, 500 GB, 1 TB, 2 TB, 4 TB1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026Capacity rows: 250GB, 500GB, 1TB, 2TB, 4TB. Data sheet footnote: 1GB = 1 billion bytes and 1TB = 1 trillion bytes

Interface

0 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.

SATA1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 20262Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

SATA1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026Interface row reads SATA. The data sheet gives SATA III 6 Gb/s

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.

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

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

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

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Hardware

2 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.

Not available

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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.

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TLC2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026NAND Type row: SANDISK TLC 3D NAND for every capacity

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

Not available

Sandisk 3D TLC2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026The same row names the flash as SANDISK TLC 3D NAND. The data sheet gives no layer count and no flash generation. Third-party sites guess Kioxia BiCS5. None is a maker statement, so it is not stored

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

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

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

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

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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.

500MB/s1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Performance Read (max.) row: 460 MB/s for 128GB and 256GB, 500 MB/s for 512GB and up. The base is the 2TB model. No test tool or host is named. The page note says results vary with platform, software, interface and capacity.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

560MB/s2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Sequential Read up to 560 MB/s for every capacity. Footnote 2: 1 MB/s = 1 million bytes per second, based on internal testing. The host and the tool are not named3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Sequential reads up to 555 MB/s (250GB) and 560 MB/s (500GB to 4TB). Footnote 6: based on internal testing, 1 MB/s = 1 million bytes per second

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

450MB/s1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Performance Write (max.) row: 360 MB/s for 128GB, 450 MB/s for 256GB and up. The base is the 2TB model.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

520MB/s2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Sequential Write up to 525 (4TB), 520 (2TB), 520 (1TB) and 510 (500GB) MB/s3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Sequential writes up to 440 (250GB), 510 (500GB) and 520 (1TB, 2TB, 4TB) MB/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.

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89,000IOPS2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Random Read up to 85K (4TB), 89K (2TB), 89K (1TB) and 78K (500GB) IOPS. No queue depth is named3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Random reads up to 80,000 (250GB) and 90,000 IOPS (500GB to 4TB). No queue depth is named

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.

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75,000IOPS2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Random Write up to 76K (4TB), 75K (2TB), 74K (1TB) and 73K (500GB) IOPS. No queue depth is named3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Random writes up to 78,000 (250GB), 82,000 (500GB and 1TB) and 87,000 IOPS (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.

600TB4Maker spec sheet (PDF)silicon-power.com/document/ssd_tbwRead 15 October 2026Silicon Power SSD TBW table, file dated 2026-08-05. The A55 row of the SATA III 2.5 inch table lists 37 TB (128GB), 75 (256GB), 150 (512GB), 300 (1TB), 600 (2TB), 1200 (4TB) and 2400 (8TB). 16TB is not in the table. The separate A55 M.2 row is a different product.

700TB2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Endurance (TBW): 1000 (4TB), 700 (2TB), 400 (1TB), 300 (500GB). Footnote 4: JEDEC client workload JESD219. Footnote 5: the warranty ends at 5 years or the TBW limit, whichever comes first3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Endurance (TBW): 100 (250GB), 200 (500GB), 400 (1TB), 500 (2TB), 600 (4TB). Footnote 7: JEDEC client workload JESD219

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 pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026MTBF (est) row reads 1,500,000 hours. The datasheet row says MTBF (test) with the same value. Stored as MTBF.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026MTBF (test) 1,500,000 hours.

2,250,000h2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026MTTF (up to hours) 2.25M for every capacity. Footnote 4: Mean Time To Failure from Telcordia SR-332 stress testing at 25 C, not a warranty. Stored as MTTF3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026MTTF up to 1.75 million hours for every capacity. Footnote 8: Telcordia stress tests, sample based, not a warranty. Stored as MTTF

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

Min0Max70°C3Maker product pageweb.archive.org/web/20251216203842/https://sp-siliconpower.com/products/a55-128gb-2tb-sata-iii-2-5-inch-internal-solid-state-driveRead 21 October 2026Silicon Power's own US store page for the A55 128GB-4TB, archived 2025-12-16, Product Specifications: Operating temperature 0 C to 70 C and storage temperature -40 C to 85 C (only the operating range is stored). The same page lists the same MTBF, shock and vibration ratings and warranty as the 2026 global page. The global page and the 2026 flyer no longer print a temperature range, and the live US page no longer shows it either

Min0Max70°C2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Operating temperatures 0 C to 70 C. The non-operating range of -55 C to 85 C is not stored. Footnote 8: operating temperature is the temperature the drive reports3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Operating temperatures 0 C to 70 C. Footnote 12: the SSD box is rated up to 60 C

Power

5 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.

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1.05W2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Average Active Power: 1090 (4TB), 1050 (2TB), 1010 (1TB) and 970 (500GB) mW. Footnote 3: measured during continuous sequential read or write activity, averaged over 10 microsecond intervals, with IOMeter and DIPM on. The row has no read and write split, so the figure is stored in both read and write

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.

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1.05W2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Same Average Active Power figure as the read field. The data sheet gives no read and write split

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

2.59W2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Max Read Operating and Max Write Operating, in mW. 4TB: 1800 and 4650. 2TB: 1520 and 2590. 1TB: 1490 and 1800. 500GB: 1510 and 1700. The higher one is stored3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Max read operating and max write operating, in mW. 250GB, 500GB, 1TB: 1800 and 2000. 2TB: 1600 and 1500. 4TB: 1500 and 1500. Footnote 11: measured during continuous sequential read or write, averaged over 1 second intervals. The higher one is stored

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.

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

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34mW2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Slumber: 33 (4TB), 34 (2TB), 31 (1TB) and 31 (500GB) mW. Slumber is the SATA low-power idle state3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026Slumber: 36 mW (250GB to 1TB), 62 (2TB) and 63 (4TB)

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

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9mW2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026DevSlp: 10 (4TB), 9 (2TB), 10 (1TB) and 9 (500GB) mW. DevSleep is the SATA deepest sleep state3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 2026DevSlp: 12 mW (250GB to 1TB) and 5 mW (2TB and 4TB)

Measured

None of 9 known

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

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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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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

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

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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.

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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.

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

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Cooling and build

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

Without heatsink1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026The page shows one plain 2.5 inch case and lists no heatsink version.

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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

SP ToolBox1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Free download of SP ToolBox for disk information, SMART report, wear extent and diagnostics. The datasheet says the performance test and secure erase features are for industrial SSDs only.

SanDisk Dashboard1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026Page: free downloadable Sandisk Dashboard (Windows only) that monitors performance, temperature and used and available space. Acronis True Image for Sandisk data migration software is also offered as a download2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Highlights name the downloadable Sandisk Dashboard application (Windows only) and the Acronis True Image for Sandisk data migration software

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)1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Page title reads SP Ace A55 2.5" SATA SSD for Laptops & PCs. No operating system is named, so PC is stored

Windows1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026Each block lists Compatibility Windows 10+. The page names no other system

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.

Length100Width69.9Height7mm(3.9 × 2.8 × 0.3 in)1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Dimensions row reads 100.0 x 69.9 x 7.0 mm. One value for every capacity.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

Length100.25Width69.9Height7mm(3.9 × 2.8 × 0.3 in)2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Physical Dimensions row: 100.25 mm x 69.9 mm x 7 mm for every capacity. Footnote 10: length, width and thickness may vary by plus or minus 0.1 mm. The row does not name the axes, so 100.25 is the length, 69.9 the width and 7 the thickness3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 20262.5 inch size 100.2 mm x 69.85 mm x 7 mm. The axes are not named, so 100.2 is the length, 69.85 the width and 7 the thickness

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.

63g(2.2 oz)1Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026Weight row reads 63g (max.). One value for every capacity. A 2.5 inch case weighs more than an M.2 drive.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

33.3g(1.2 oz)2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Weight row: 34.5 g (4TB), 33.3 g (2TB), 33.1 g (1TB) and 33 g (500GB), plus or minus 1 g. The Sandisk page prints 34.5 g for the 500GB, 1TB and 2TB blocks. The data sheet is preferred. The base is the 2TB column3Maker spec sheet (PDF)media.bechtle.com/asrc/180712/1c4b3d4ee288fc9434f5175bf56070570/c3/-/30f4e0dd49fc49b18a552c4c9448d267/wd-blue-sa510-2-tb-ssd-datenblatt-1Read 20 October 20262.5 inch weight 34.6 g plus or minus 1 g for every capacity

In the box

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In the box

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WD Blue SA510 2.5” SATA SSD1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026In The Box row reads WD Blue SA510 2.5 inch SATA SSD. The Acronis True Image data migration software is a download, not a box item

Cables includediCables supplied with an external drive.

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Links

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Product page

www.silicon-power.com/product-detail/Ace_A551Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026

www.sandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssd1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 2026

Spec sheet

www.silicon-power.com/download-detail/edm-ace-a552Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026One-page eDM flyer issued Feb 13, 2026. It is the only datasheet on the product page. It has no controller, flash, DRAM, IOPS, temperature or TBW values.

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdf2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Sandisk data sheet for the WD Blue SA510 SATA SSD, dated January 2026. It lists 500GB, 1TB, 2TB and 4TB with the 5B0A codes WDS500G5B0A, WDS100T5B0A, WDS200T5B0A and WDS400T5B0A. It has no 250GB column. The base values of this product are the 2TB WDS200T5B0A column

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 pagesilicon-power.com/product-detail/Ace_A55Read 15 October 20263-year limited warranty. The page says the warranty is based on the TBW or the warranty period.2Maker spec sheet (PDF)silicon-power.com/download-detail/edm-ace-a55Read 15 October 2026

5years1Maker product pagesandisk.com/products/ssd/internal-ssd/wd-blue-sa510-sata-2-5-ssdRead 20 October 20265-Year Limited Warranty in every block. The data sheet adds: 5 years or the TBW limit, whichever comes first. Regional terms are on the Sandisk support site2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-blue-ssd/data-sheet-wd-blue-sa510-sata-ssd.pdfRead 20 October 2026Limited Warranty row: 5 years

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