SSDs / Compare
Silicon Power Ace A55 vs TeamGroup T-FORCE VULCAN Z
Product A: Silicon Power
19 of 63 known
Change Silicon Power Ace A55
Product B: TeamGroup
23 of 63 known
Change TeamGroup T-FORCE VULCAN Z
14 of 55 fields differ
- 8 different values
- 6 known for one only
- 6 the same
- 35 missing for both
Biggest differences
Each bar uses the scale of all 84 SSDs.
- EnduranceA: 600TBB: 400TBSilicon Power is 200 TB higher.
- Write speedA: 450MB/sB: 500MB/sTeamGroup is 50 MB/s higher.
Weight
0 to 150 g
All 63 fields
Every value links to where we found it.

General
4 of 9 differ
Series
Not available
Not available
Model numbers
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
T253TZ240G0C101, T253TZ256G0C101, T253TZ480G0C101, T253TZ512G0C101, T253TZ001T0C101, T253TZ002T0C101, T253TZ004T0C1011Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026Table column TEAM P/N: T253TZ240G0C101, T253TZ256G0C101, T253TZ480G0C101, T253TZ512G0C101, T253TZ001T0C101, T253TZ002T0C101 and T253TZ004T0C1012Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 2026Ordering information table lists the seven part numbers
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
765441060463, 765441061965, 765441060531, 765441061958, 765441060470, 7654410604875Retailer pageamazon.com/dp/B09WMP5B5NRead 15 October 2026UPCs from the TEAMGROUP listings on Amazon, one page per capacity: 1TB 765441060470 (this page), 2TB 765441060487 (B09WMSVHD4), 256GB 765441061965 (B0B6ZCMSQ3), 480GB 765441060531 (B09WMQQ68S) and 512GB 765441061958 (B0B6ZC5MS3). The 240GB UPC 765441060463 comes from eBay listings of T253TZ240G0C101 titled Team Group 240GB T-FORCE VULCAN Z. All pass the UPC-A check digit. No UPC was found for the 4TB TZ
Announced
Not available
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
Not available
From $28.991Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 20263Press releasegdm.or.jp/pressrelease/2022/0506/438149Read 15 October 20264Press articleclub386.com/teamgroup-launches-budget-t-force-vulcan-z-sata-ssd-with-capacities-up-to-2tbRead 15 October 20265Retailer pageamazon.com/dp/B09WMP5B5NRead 15 October 2026
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Not available
Form factor
Capacity
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
240 GB, 256 GB, 480 GB, 512 GB, 1 TB, 2 TB, 4 TB1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026Capacity column 240GB, 256GB, 480GB, 512GB, 1TB, 2TB and 4TB. Note 1 says 1GB equals 1,000,000,000 bytes and 1TB equals 1,000,000,000,000 bytes
Interface
0 of 5 differ
Interface
PCIe generation
Not available
Not available
PCIe lanes
Not available
Not available
NVMe version
Not available
Not available
Detachable cable
Not available
Not available
Hardware
2 of 7 differ
Controller
Not available
Not available
Flash type
Not available
TLC3Press releasegdm.or.jp/pressrelease/2022/0506/438149Read 15 October 2026Release says the drive uses high-quality 3D TLC NAND. Tech4Gamers confirms TLC on the 2TB in 2024 and Amazon's TEAMGROUP listings still say TLC for the T253TZ part numbers. The product page and spec sheet now say only 3D NAND, and TeamGroup halved the TBW in early 2025, so the flash of current units is not confirmed. The QLC drive is the separate VULCAN Z QLC SSD, T253TY6Reviewtech4gamers.com/teamgroup-t-force-vulcan-z-2-5-2tb-ssd-reviewRead 15 October 2026The 2TB uses a single Sandisk 3D TLC package. The review says the TLC Vulcan Z goes up to 2TB and the 4TB is the QLC model
Flash memory
Not available
Not available
Flash layers
Not available
Not available
DRAM cache
Not available
None1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026DRAM Cache column reads NO for every capacity. A SATA drive has no host memory buffer, so none is stored6Reviewtech4gamers.com/teamgroup-t-force-vulcan-z-2-5-2tb-ssd-reviewRead 15 October 2026Review of 25 September 2024: the 2TB is DRAM-less with SLC caching and uses 3D TLC flash. It names the controller as an SM2259XT2G, while Back2Gaming (SM2259XT) and Basic Tutorials (SM2258XT) differ, so no controller is stored. The review says TeamGroup changed the components since the first release
DRAM cache size
Not available
Not available
Component sides
Not available
Not available
Performance
2 of 4 differ
Sequential read (claimed)
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
Sequential write (claimed)
Random 4K read (claimed)
Not available
Not available
Random 4K write (claimed)
Not available
Not available
Endurance and reliability
2 of 3 differ
Endurance (TBW)
MTBF or MTTF (claimed)
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.
1,000,000h1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026MTBF row reads 1,000,000 Hours2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 2026MTBF 1,000,000 Hours
Operating temperature
Power
None of 6 known
Power while reading (claimed)
Not available
Not available
Power while writing (claimed)
Not available
Not available
Max power consumption (claimed)
Not available
Not available
Average power in light use (claimed)
Not available
Not available
Idle power (claimed)
Not available
Not available
Sleep power (claimed)
Not available
Not available
Measured
None of 9 known
Sequential read (measured)
Not available
Not available
Sequential write (measured)
Not available
Not available
Random 4K read at queue depth 1 (measured)
Not available
Not available
Random 4K write at queue depth 1 (measured)
Not available
Not available
Write cache size (measured)
Not available
Not available
Write speed after the cache (measured)
Not available
Not available
3DMark Storage Benchmark
Not available
Not available
Highest temperature under load (measured)
Not available
Not available
Idle power (measured)
Not available
Not available
Cooling and build
1 of 4 differ
Heatsink
Not available
RGB lighting
Not available
Not available
Dust and water rating
Not available
Not available
Drop test height
Not available
Not available
Security and software
1 of 2 differ
Security
Not available
Not available
Software
Compatibility
1 of 1 differ
Platforms
Dimensions and weight
1 of 2 differ
Dimensions
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
Length100Width69.9Height7mm(3.9 × 2.8 × 0.3 in)1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026Dimensions row reads 100(L) x 69.9(W) x 7(H) mm. The September 2025 spec sheet reads 6.8 mm for the height and says the website prevails, so 7 mm is stored. The launch release and reviews also say 7 mm2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 2026Dimensions row reads 100(L) x 69.9(W) x 6.8(H) mm. The product page reads 7 mm. The sheet says that the official website prevails in a discrepancy
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
45g(1.6 oz)1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026Weight row reads 45g for every capacity. A 2.5 inch case weighs far more than an M.2 drive2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 2026Weight 45g
In the box
None of 2 known
In the box
Not available
Not available
Cables included
Not available
Not available
Links
Not compared
Product page
www.silicon-power.com/product-detail/Ace_A551Maker product pagesilicon-power.com/product-detail/Ace_A55Read 15 October 2026
www.teamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C1011Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 2026The 2TB page. The other capacity pages carry the same table. TeamGroup sells the VULCAN Z QLC SSD (T253TY part numbers) as a separate product, which is not stored here
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.
images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdf2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 2026TEAMGROUP T-FORCE VULCAN Z SSD spec sheet, PDF created 5 September 2025, three pages. Same capacities, speeds and TBW as the product page
Manual
Not available
Not available
EPREL registration number
Not available
Not available
Warranty
0 of 1 differ
Manufacturer warranty (source market)
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
3years1Maker product pageteamgroupinc.com/en/product-detail/ssd/T-FORCE/vulcan-z/vulcan-z-T253TZ002T0C101Read 15 October 20263-year limited warranty, or the TBW limit, whichever comes first. The page says the term may differ where local law applies2Maker spec sheet (PDF)images.teamgroupinc.com/products/ssd/internal/vulcan-z/spec-sheet/vulcan-z-en.pdfRead 15 October 20263-year limited warranty, based on TBW or the warranty period, whichever happens first













