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Sandisk 520 SATA SSD vs Sandisk Extreme Portable SSD (V3)

A

Product A: Sandisk

520 SATA SSD

25 of 63 known

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B

Product B: Sandisk

Extreme Portable SSD (V3)

28 of 63 known

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Only differences

ASandisk 520 SATA SSD

BSandisk Extreme Portable SSD (V3)

General

6 of 9 differ

Series

Not available

Extreme3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Maker line name is SANDISK Extreme, page title SANDISK Extreme Portable SSD (V3)

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

SDSS51500GAB-000G0, SDSS51100TAB-000G0, SDSS51200TAB-000G0, SDSS51400TAB-000G01Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Model Numbers list: 500GB SDSS51500GAB-000G0, 1TB SDSS51100TAB-000G0, 2TB SDSS51200TAB-000G0, 4TB SDSS51400TAB-000G0. The store page showed an out of stock state in one snapshot, while retailers list the drive

SDSSDE70-500G-G25, SDSSDE70-500G-G25B, SDSSDE70-1T00-G25, SDSSDE70-1T00-G25B, SDSSDE70-2T00-G25, SDSSDE70-2T00-G25B, SDSSDE70-4T00-G252Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026Model number and UPC table lists the Monterey Blue SKUs SDSSDE70-2T00-G25B, SDSSDE70-1T00-G25B and SDSSDE70-500G-G25B, region GLOBAL. The black SKUs are on the product page3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Model Numbers table: black SDSSDE70-500G-G25, -1T00-G25, -2T00-G25, -4T00-G25. Monterey Blue SDSSDE70-500G-G25B, -1T00-G25B and -2T00-G25B

GTIN / EAN

619659231767, 6196592317504Retailer pageshop.tsukumo.co.jp/goods/0619659231767Read 14 October 2026Tsukumo Japan listing for SDSS51200TAB-000G0, with EAN-13 0619659231767 in its address, which is UPC 619659231767. The 4TB code 619659231750 was seen only in a search summary of a Sumillion listing that no longer loads. Both have valid check digits. The 500GB and 1TB codes were not found

619659235291, 619659238568, 619659223151, 619659238575, 619659223199, 619659238582, 6196592232362Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026EAN column reads 0 619659 238582, 0 619659 238575 and 0 619659 238568. Stored as the 12-digit UPC. The black UPCs are on the product page data3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026UPCs in the page data: 619659235291 (500GB), 619659223151 (1TB), 619659223199 (2TB), 619659223236 (4TB) for black and 619659238568, 619659238575, 619659238582 for Monterey Blue

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

Not available

24 February 20264Press releasesandisk.com/company/newsroom/press-releases/2026/2026-02-24-sandisk-introduces-next-generation-portable-ssd-portfolio-to-support-faster-more-demanding-workflows-and-ai-developed-contentRead 14 October 202624 February 2026

Status

Available1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026The page lists the 520 as a current product. The store showed it out of stock in one snapshot. Search results show retailer listings such as Adorama and Proshop, which were not opened, and Tsukumo Japan sold the 2TB from 2026-09-17

Available3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Product page lists Black and Monterey Blue SKUs for sale, with the Black 4TB as the only 4TB4Press releasesandisk.com/company/newsroom/press-releases/2026/2026-02-24-sandisk-introduces-next-generation-portable-ssd-portfolio-to-support-faster-more-demanding-workflows-and-ai-developed-contentRead 14 October 2026Available now and shipping globally

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

Not available

Sandisk Extreme Portable SSD (V2)7Press releasesandisk.com/en-us/company/newsroom/press-releases/2026/2026-02-24-sandisk-introduces-next-generation-portable-ssd-portfolio-to-support-faster-more-demanding-workflows-and-ai-developed-contentRead 23 October 2026Sandisk says the new Extreme Portable SSD has nearly twice the speed of its predecessor.8Reviewtechradar.com/computing/storage-backup/the-sandisk-extreme-1tb-is-one-of-our-favorite-portable-rugged-ssds-ever-fast-sleek-and-now-with-a-usd60-discountRead 23 October 2026TechRadar says the newer Extreme Portable SSD at 2000 MB/s is a jump over the 1050 MB/s previous generation of the same drive.

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.

Not available

$459.994Press releasesandisk.com/company/newsroom/press-releases/2026/2026-02-24-sandisk-introduces-next-generation-portable-ssd-portfolio-to-support-faster-more-demanding-workflows-and-ai-developed-contentRead 14 October 2026Pricing starting at $259.99 MSRP for 1TB, with 2TB and 4TB also offered. The 2TB and 4TB prices come from Digital Camera World5Press articledigitalcameraworld.com/cameras/ssds/sandisk-announces-its-fastest-ever-portable-ssdRead 14 October 2026Launch coverage: 1TB $259.99, 2TB $459.99 and 4TB $919.99, US prices before tax, available to buy at launch

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

€450.996Press articlephototrend.fr/en/2026/02/ssd-sandisk-portable-v3Read 14 October 2026Launch coverage on 25 February 2026: 1TB 260.99 EUR, 2TB 450.99 EUR and 4TB 889.99 EUR on the SanDisk store, including VAT. The article names no country. The French outlet is the only source found

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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Black, Monterey Blue2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026Datasheet is for the Monterey Blue version. The black version has its own datasheet3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026SKU titles read Black and Monterey Blue

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 pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 20262.5-inch form factor2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 20262.5 inch, 7 mm cased

External1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Form factor row reads External SSD - Portable SSD

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.

500 GB, 1 TB, 2 TB, 4 TB1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Capacities 500GB, 1TB, 2TB and 4TB. Footnote says 1GB is 1 billion bytes

500 GB, 1 TB, 2 TB, 4 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Available capacities row reads 4TB, 2TB, 1TB. The 500GB comes from the Monterey Blue datasheet and the product page. 1TB is 1,000,000,000,000 bytes2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026Monterey Blue datasheet lists 2TB, 1TB and 500GB3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026

Interface

2 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 pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 20262Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026SATA III 6 Gbps, backwards compatible with SATA I and II. Footnote also says secure boot and secure firmware update are supported, which has no schema option

USB 3.2 Gen 2x2 (20 Gbps)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Interface row reads USB 3.2 Gen 2x2 (20Gbps)

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.

Not available

Yes3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026The cable is a separate item in the box, with a USB-C to USB-C cable for a drive with a USB-C port. The page does not use the word detachable

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.

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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.

TLC1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Page says built with trusted SANDISK 3D NAND. The datasheet table says SANDISK TLC 3D NAND2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

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

Sandisk 3D TLC2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026Row NAND TYPE reads SANDISK TLC 3D NAND. No generation or layer count is published

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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.

None2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026Datasheet table: DRAM No, SLC cache Yes. SATA has no host memory buffer, so the value is none

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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.

560MB/s1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Per-capacity specifications: read 560 MB/s at every capacity, write 510 (500GB), 520 (1TB), 520 (2TB) and 525 (4TB). The page footnote says the speeds are based on internal testing with no tool or host named

2,000MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Up to 2,000 MB/s read. Based on internal testing, host not named. Performance may be lower depending on host device, interface and usage. This datasheet gives no write speed2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026Up to 2,000 MB/s read for 500GB, 1TB and 2TB. The product page marks the 500GB read speed as projected3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Specifications table: Up to 2000MB/s, and Projected up to 2000MB/s on the black 500GB SKU

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

520MB/s1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 20262Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

1,700MB/s2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-monterey-blue-ssd.pdfRead 14 October 2026Footnote 2: 1TB and 2TB up to 1700 MB/s write. 500GB up to 1600 MB/s write. Based on internal testing, host not named. The 4TB write speed is on the product page. The product page shows 1700 MB/s for the black 500GB SKU, which disagrees with this datasheet. The datasheet is stored3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Specifications table: Up to 1700MB/s for the 1TB, 2TB and 4TB SKUs. The black 500GB SKU shows 1700 MB/s and the blue 500GB SKU shows 1600 MB/s. The blue datasheet says 1600 for 500GB, which is stored

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.

89,000IOPS2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026Random read up to 78K, 89K, 89K and 85K IOPS and random write up to 73K, 74K, 75K and 76K for 500GB, 1TB, 2TB and 4TB. Queue depth and threads are not stated

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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.

75,000IOPS2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

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Endurance and reliability

3 of 3 differ

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

700TB1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Endurance (TBW) 300, 400, 700 and 1,000 for 500GB, 1TB, 2TB and 4TB. TBW follows JEDEC client workload JESD2192Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

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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.

2,250,000h1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Page says up to 2.25M hours MTTF. Published as MTTF, stored as MTBF2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026MTTF up to 2.25M hours, based on Telcordia SR-332 stress testing at 25 C. Stored as MTBF

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

Min0Max70°C1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 20262Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 20260 to 70 C as reported by the drive. Non-operating -55 to 85 C, shock 1,500 G at 0.5 ms and vibration figures are not stored

Min0Max45°C1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Operating 0 to 45 C (32 to 113 F). The storage range of -20 to 85 C is not stored

Power

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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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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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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.

2.59W2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026Max Read Operating 1.51, 1.49, 1.52 and 1.8 W. Max Write Operating 1.7, 1.8, 2.59 and 4.65 W. The higher write figure is stored. Footnote 3 says IOMeter with DIPM enabled, averaged over 10 microsecond intervals during continuous sequential read or write. Average Active Power of 0.97, 1.01, 1.05 and 1.09 W is not stored, since its workload is not stated

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

9mW2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026DevSlp 9, 10, 9 and 10 mW for 500GB, 1TB, 2TB and 4TB. Slumber of 31, 31, 34 and 31 mW is a SATA link state and is not stored

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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.

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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

2 of 4 differ

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.

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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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IP651Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Durability row reads IP65 with drop protection up to three meters. Footnote: IEC 60529 IP65, tested to withstand water flow (30 kPa) for 3 minutes. Limited dust contact does not interfere with operation. Must be clean and dry before use3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026IP65 rating

Drop test heightiMaker-published tested height. Surface and conditions are in the source note.

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3m1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Up to 3 m, based on internal testing. Surface and conditions are not stated3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Up to 3-meter drop protection

Security and software

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SecurityiFeatures the maker names for the drive. Encryption done by host software does not count. ATA Security passthrough counts as password protection.

Not available

AES 256-bit hardware encryption, Password protection1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Highlights read 256-bit AES encryption with password protection. Footnote 4 says password protection uses 256-bit AES and needs a software download. The press release calls it 256-bit AES hardware encryption3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Features read 256-BIT AES encryption with password protection4Press releasesandisk.com/company/newsroom/press-releases/2026/2026-02-24-sandisk-introduces-next-generation-portable-ssd-portfolio-to-support-faster-more-demanding-workflows-and-ai-developed-contentRead 14 October 2026Reads password protection included with 256-bit AES hardware encryption

Software

SanDisk Dashboard1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Page names the downloadable SANDISK Dashboard (Windows only) and the free Acronis True Image for SANDISK migration software2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

SANDISK app1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026SANDISK app footnote: download and installation required, Android 8+, macOS 11+ and Windows 10 and 11. The footnote points to sandisk.com/memoryzone for app details3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026The SANDISK app for mobile and desktop manages, backs up and transfers files

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.

Not available

Windows, macOS, Android, iOS, iPadOS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026System compatibility reads macOS 13+ (Time Machine compatible) and Windows 10+. The app compatibility row adds Android 8+. The product page adds iPadOS 15+ and the iOS Files app3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026Compatibility reads Android 10+, iPadOS 15+, macOS 12+, Windows 10+ and Files App for iOS 17+

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.

Length100.5Width69.85Height7mm(4 × 2.8 × 0.3 in)1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026Page prints 3.95 x 2.75 x 0.28 inches. The datasheet gives 100.50 x 69.85 x 7.0 mm, which is stored2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026SIZE row 100.50 x 69.85 x 7.0 mm, weight 34.5 g. Footnote 9 says length and width vary by 0.15 mm and weight by 1 g

Length85Width51Height9.8mm(3.3 × 2 × 0.4 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Product dimensions row reads 3.35 x 2 x 0.39 in | 85 x 51 x 9.8 mm3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 20263.35 x 2 x 0.39 in on the page. The metric values come from the datasheet

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.

34.5g(1.2 oz)1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 202634.5 g for every capacity2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

46.9g(1.7 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026Product weight row reads 0.10 lb | 46.9 g3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 202646.9 g

In the box

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In the box

SANDISK 520 SATA SSD1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026In The Box row: SANDISK 520 SATA SSD

SANDISK Extreme Portable SSD, USB-C to USB-C Cable, Quick Install and Warranty Guide3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026In The Box reads SANDISK Extreme Portable SSD, USB-C to USB-C Cable, Quick Install and Warranty Guide. It is the same for every SKU

Cables includediCables supplied with an external drive.

ASandisk 520 SATA SSD

Not available

BSandisk Extreme Portable SSD (V3)

Type	Count
USB-C to USB-C	1

Source3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026One USB-C to USB-C cable. The page gives no cable length

Links

Not compared

Product page

www.sandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssd1Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 2026

www.sandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v33Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 2026

Spec sheet

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdf2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/520-sata-ssd/data-sheet-520-sata-ssd.pdfRead 14 October 2026

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 2026

Manual

Not available

Not available

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

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 product pagesandisk.com/products/ssd/internal-ssd/sandisk-520-sata-ssdRead 14 October 20265-year limited warranty, or the TBW limit, whichever occurs first

5years1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-portable-ssd/data-sheet-extreme-portable-ssd.pdfRead 14 October 20265-year limited warranty. The datasheet is global and names no market3Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-portable-ssd-v3Read 14 October 20265-Year Limited Warranty

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