SSDs / Compare

OWC Envoy Ultra vs Sandisk Extreme Portable SSD (V3)

A

Product A: OWC

Envoy Ultra

25 of 63 known

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B

Product B: Sandisk

Extreme Portable SSD (V3)

28 of 63 known

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All 63 fields

Every value links to where we found it.

Only differences

AOWC Envoy Ultra

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.

TB5ENVU02, TB5ENVU04, TB5ENVU082Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026OWC's own MacSales store. SKU TB5ENVU02 for the 2TB model, TB5ENVU04 for 4TB and TB5ENVU08 for 8TB. The U suffix sku TB5ENVU02U is a used or open-box listing with the same UPC and a 2 year warranty, so it is not stored

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

810159621793, 810159621809, 8101596218162Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026UPC 810159621793 for the 2TB (JSON-LD of the product page). 810159621809 is the 4TB and 810159621816 the 8TB3Maker product pageeshop.macsales.com/item/OWC/TB5ENVU04Read 15 October 20264Maker product pageeshop.macsales.com/item/OWC/TB5ENVU08Read 15 October 2026

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.

12 September 20246Press releaseowc.com/news/owc-launches-envoy-ultra-thunderbolt-5-ssdRead 15 October 2026OWC press release dated 12 September 2024, Woodstock, IL

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

Available2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Structured data on the 2TB page shows InStock on 2026-10-15. The 2TB, 4TB and 8TB pages are all live

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.

Not available

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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.

$399.996Press releaseowc.com/news/owc-launches-envoy-ultra-thunderbolt-5-ssdRead 15 October 20262.0TB at $399.99 and 4.0TB at $599.99 US dollars at launch, no tax stated

$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.

Not available

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ColoursiThe maker's own colour names

Black2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Housing Color: Black. Housing Material: Aluminum

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.

External2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Portable drive in its own aluminum case with a captive cable, so external. The drive mechanism is a 2.0TB OWC Aura Pro IV PCIe 4.0 NVMe M.2 2280 SSD, and OWC reserves the right to replace it with equivalent or better components

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.

2 TB, 4 TB, 8 TB2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Spec table: Total Capacity 2048GB, with 1920GB usable and 128GB allocated to real-time data redundancy and error correction. The 4TB lists 4096GB total and 3840GB usable, the 8TB 8192GB total and 7680GB usable. The product is sold as 2.0TB, 4.0TB and 8.0TB, so the marketed 2000, 4000 and 8000 GB are stored3Maker product pageeshop.macsales.com/item/OWC/TB5ENVU04Read 15 October 20264096GB total, 3840GB usable, 256GB allocated to redundancy and error correction4Maker product pageeshop.macsales.com/item/OWC/TB5ENVU08Read 15 October 20268192GB total, 7680GB usable, 512GB allocated to redundancy and error correction6Press releaseowc.com/news/owc-launches-envoy-ultra-thunderbolt-5-ssdRead 15 October 2026Launch capacities 2.0TB and 4.0TB7Press releaseowc.com/ca/news/other-world-computing-introduces-8tb-envoy-ultra-thunderbolt-5-ssdRead 15 October 2026OWC press release dated 5 January 2026 announces the 8TB model, available that day through OWC.com, Amazon and MacSales.com

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.

Thunderbolt 51Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Page headline: The First and Fastest Thunderbolt 5 Portable SSD. Real-world speeds are given for Thunderbolt 5, Thunderbolt 4, Thunderbolt 3 (Mac only) and USB4, so the drive is rated for Thunderbolt 5 at the top2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Host Port Thunderbolt 5 (USB-C) up to 80Gb/s. Maximum data rate is up to 40Gb/s on USB4. Chipset: Thunderbolt JHL9480. Host interface requirements are Thunderbolt 5, Thunderbolt 4, Thunderbolt 3 (Mac only) or USB4

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.

No1Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Built-in Thunderbolt cable. The footnote says a damaged cable is a user serviceable item, available from 20252Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Captive Cable: (1) Thunderbolt 5 (USB-C), 23.3 cm long

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

4 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.

Phison E27T9Reviewmigovi.com/en/owc-envoy-ultra-portable-ssd-performance-reviewRead 15 October 2026Migovi opened a 2TB Envoy Ultra and names the OWC Aura Pro IV inside, with a Phison PS5027-E27T controller, written Phison E27T like the other catalog drives. OWC reserves the right to change the internal components and the 4TB MacSales Aura Pro IV listing agrees. An older 2TB Aura Pro IV used another controller in a 2022 PCWorld review

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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.

TLC9Reviewmigovi.com/en/owc-envoy-ultra-portable-ssd-performance-reviewRead 15 October 2026Kioxia BiCS6 162-layer 3D TLC

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

Kioxia BiCS6 TLC9Reviewmigovi.com/en/owc-envoy-ultra-portable-ssd-performance-reviewRead 15 October 2026Kioxia BiCS6 162-layer 3D TLC

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

1629Reviewmigovi.com/en/owc-envoy-ultra-portable-ssd-performance-reviewRead 15 October 2026162-layer

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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

2 of 4 differ

Sequential read (claimed)iMaker's up-to sequential read speed for this capacity. Test conditions are in the source note.

6,000MB/s1Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Footnote: up to 6000MB/s sequential read/write (max), tested with a 2.0TB OWC Aura Pro IV equipped Envoy Ultra on a Windows 11 PC with an Intel Core i9-14900HX and 32GB 5600MHz RAM, AJA System Test, 4K-Full resolution, 64GB file size, 16bit RGB codec, single file test. The headline says over 6000MB/s. OWC's footnote says longer write sessions sustain 1350MB/s (2TB) and 1700MB/s (4TB), which has no field

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.

6,000MB/s1Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Same AJA System Test footnote as read: up to 6000MB/s for the 2TB drive. The page does not state a different figure for the 4TB or 8TB

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.

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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.

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Endurance and reliability

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

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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.

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

Min5Max35°C2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Ambient temperature operating 5 C to 35 C (41 F to 95 F). Non-operating range of -20 C to 60 C is not stored5Owner's manualeshop.macsales.com/manuals/owc-envoy-ultra-support-manualRead 15 October 2026Operating temperature 5 C to 35 C

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

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.

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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.

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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.

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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

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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.

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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.

IP671Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Crushproof, dustproof and waterproof IP67 rated. Footnote: waterproof for up to 30 minutes at under 1 meter, and the plug end of the built-in cable is not waterproof2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026IP Rating row: IP67 (dust-tight, protected against the effects of temporary immersion in water)

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

Not available

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.

macOS, Windows, Linux, ChromeOS, iPadOS1Maker product pageowc.com/solutions/envoy-ultraRead 15 October 2026Page says Macs, PCs, iPad Pros, Chromebooks and Surface devices. The MacSales spec table names macOS, Windows 11, Ubuntu Linux, iPadOS and Chrome OS2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Mac OS: macOS 14, 15 and 26. PC: Windows 11. Linux: Yes, latest Ubuntu. Mobile: iPadOS 17, 18 and 26. Other: Chrome OS. The drive ships APFS formatted and other platforms must reformat it. Android is not stored, since the table lists no Android version5Owner's manualeshop.macsales.com/manuals/owc-envoy-ultra-support-manualRead 15 October 2026macOS 14.x or later (Thunderbolt 5 needs 15.3.x), Windows 11, Chrome OS, iPadOS and Ubuntu

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.

Length130Width75Height20mm(5.1 × 3 × 0.8 in)2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Height 2.0 cm, Length 13.0 cm, Width 7.5 cm. The captive cable is not included in the length. Stored as 130 x 75 x 20 mm

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.

341g(12 oz)2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026341.0 g (0.75 lbs). The same on the 4TB and 8TB pages. Thunderbolt Laptop lists about 327 g (10.5 oz), so the OWC figure is used

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

OWC Envoy Ultra External Storage Solution, OWC Envoy Ultra Getting Started QR Insert Card, Support Manual for OWC Envoy Ultra (digital), 5 Year OWC Limited Warranty2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Includes row: OWC Envoy Ultra External Storage Solution, Getting Started QR Insert Card, digital Support Manual and a 5 Year OWC Limited Warranty. The text is the same on the 2TB, 4TB and 8TB pages

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.

AOWC Envoy Ultra

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.owc.com/solutions/envoy-ultra1Maker product pageowc.com/solutions/envoy-ultraRead 15 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

Not available

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

eshop.macsales.com/manuals/owc-envoy-ultra-support-manual5Owner's manualeshop.macsales.com/manuals/owc-envoy-ultra-support-manualRead 15 October 2026Support Manual for OWC Envoy Ultra

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.

5years2Maker product pageeshop.macsales.com/item/OWC/TB5ENVU02Read 15 October 2026Includes list says 5 Year OWC Limited Warranty. The US store page names no other warranty for the new product. SHI and Thunderbolt Laptop say 3 years, which OWC's page and support manual do not5Owner's manualeshop.macsales.com/manuals/owc-envoy-ultra-support-manualRead 15 October 20265-Year Limited Warranty, not transferable

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.