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Sandisk Extreme PRO Portable SSD (V3) vs Sandisk Professional PRO-G40 SSD

A

Product A: Sandisk

Extreme PRO Portable SSD (V3)

26 of 63 known

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B

Product B: Sandisk

Professional PRO-G40 SSD

30 of 63 known

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All 63 fields

Every value links to where we found it.

Only differences

ASandisk Extreme PRO Portable SSD (V3)

BSandisk Professional PRO-G40 SSD

General

6 of 9 differ

Series

Extreme PRO3Press 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 2026Release names three tiers, SANDISK Portable SSD, SANDISK Extreme Portable SSD and SANDISK Extreme PRO Portable SSD. The Extreme PRO line name is stored as the series

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

SDSSDE83-2T00-G25, SDSSDE83-4T00-G251Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Model number row reads SDSSDE83. Available capacities 4TB and 2TB. The part numbers with capacity come from the Sandisk product page2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Model Numbers block: 2TB SDSSDE83-2T00-G25, 4TB SDSSDE83-4T00-G25 and 8TB SDSSDE83-8T00-G25. The 8TB model is not stored

SDPS31H-001T-GBC1D, SDPS31H-002T-GBC1D, SDPS31H-004T-GBC1D, SDPS31H-001T-GBCND, SDPS31H-002T-GBCND1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Worldwide SKU table: SDPS31H-001T-GBC1D, SDPS31H-002T-GBC1D and SDPS31H-004T-GBC1D. The 2022 launch part numbers SDPS31H-001T-GBCND and SDPS31H-002T-GBCND come from Tom's Hardware's spec table. The sheet also lists China SKUs ending ZBC1D, which are not stored

GTIN / EAN

Not available

619659209599, 619659209568, 6196592096121Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026UPC column for the worldwide SKUs: 6 19659 20959 9 (1TB), 6 19659 20956 8 (2TB) and 6 19659 20961 2 (4TB). Stored as 12-digit UPC. The sheet gives no GTINs for the GBCND launch parts

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

24 February 20263Press 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 2026Sandisk newsroom release dated 2026-02-24 announcing the three-tier V3 portable SSD lineup5Press articlephototrend.fr/en/2026/02/ssd-sandisk-portable-v3Read 14 October 2026Article dated 25 February 2026 covers the announcement. The Extreme V3 is available that day and the Extreme PRO follows in the second half of 2026

5 October 20223Press releasewesterndigital.com/de-at/company/newsroom/press-releases/2022/2022-10-05-western-digital-turbocharges-versatility-with-new-sandisk-professional-pro-g40-ssdRead 15 October 2026Western Digital press release dated 2022-10-05, San Jose, California

Status

Available2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026The page lists 2TB and 4TB SKUs with full specifications and the Gadgety review shows the 2TB on sale. Live price and stock are loaded by script and are not stored. The 8TB SKU is listed with projected speeds, so it is not sold yet4Reviewgadgety.co.ilRead 14 October 2026The reviewed 2TB model is listed for sale in Israel

Available2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-professional-pro-g40-ssdRead 15 October 2026The page is live in October 2026 with the three GBC1D SKUs. Amazon US showed the 4TB at rank 51 in External Solid State Drives with 1,098 reviews

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.

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.

Not available

From $299.991Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 20263Press releasewesterndigital.com/de-at/company/newsroom/press-releases/2022/2022-10-05-western-digital-turbocharges-versatility-with-new-sandisk-professional-pro-g40-ssdRead 15 October 20264Press articlestoragereview.com/review/sandisk-professional-pro-g40-reviewRead 15 October 20265Press articlecomputerbase.de/2022-10/sandisk-professional-externe-pro-g40-ssd-ist-schnell-und-teuerRead 15 October 20266Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 20267Measurementtomshardware.com/reviews/sandisk-pro-g40-ssd-review/3Read 15 October 20268Measurementtomshardware.com/reviews/sandisk-pro-g40-ssd-review/2Read 15 October 2026

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

From €4711Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 20263Press releasewesterndigital.com/de-at/company/newsroom/press-releases/2022/2022-10-05-western-digital-turbocharges-versatility-with-new-sandisk-professional-pro-g40-ssdRead 15 October 20264Press articlestoragereview.com/review/sandisk-professional-pro-g40-reviewRead 15 October 20265Press articlecomputerbase.de/2022-10/sandisk-professional-externe-pro-g40-ssd-ist-schnell-und-teuerRead 15 October 20266Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 20267Measurementtomshardware.com/reviews/sandisk-pro-g40-ssd-review/3Read 15 October 20268Measurementtomshardware.com/reviews/sandisk-pro-g40-ssd-review/2Read 15 October 2026

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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Black1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Color column reads Black for every SKU

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.

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

External1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Portable SSD in a rugged case that connects by a USB-C port, so stored as external

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 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Available capacities 4TB, 2TB. Footnote 1: 1TB = 1,000,000,000,000 bytes. The 8TB model is not on the data sheet2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 20262TB and 4TB have full specifications. The 8TB page block reads projected up to 4000MB/s and projected up to 3800MB/s, and the press release says projected for 8TB, so 8TB is left out3Press 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 2026Extreme PRO in 2TB, 4TB and 8TB, with speeds projected for 8TB5Press articlephototrend.fr/en/2026/02/ssd-sandisk-portable-v3Read 14 October 2026Extreme PRO V3 in 2, 4 and 8 TB

1 TB, 2 TB, 4 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Capacity column: 1TB, 2TB and 4TB. Footnote: 1 TB = 1 trillion bytes

Interface

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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.

USB41Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Interface row reads USB4 (40Gbps). The data sheet does not name Gen 3x25Press articlephototrend.fr/en/2026/02/ssd-sandisk-portable-v3Read 14 October 2026Extreme PRO V3 announced at up to 4,000 MB/s read and 3,800 MB/s write over USB4

Thunderbolt 31Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Interface row reads Thunderbolt 3 (40Gbps) and SuperSpeed USB 10Gbps (USB 3.2 Gen 2). Stored as the highest mode, Thunderbolt 3

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.

Yes4Reviewgadgety.co.ilRead 14 October 2026The review shows an exposed USB-C port on the drive and lists the missing cover for the USB-C port as a drawback, so the cable is not fixed

Yes6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026The drive has a reinforced USB-C port and a Type-C to Type-C cable is in the box

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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Sandisk in-house6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Spec table row Controller reads SanDisk Proprietary, written as Sandisk in-house like the Optimus GX PRO 850X. Text: the SSD inside is the SN750E, with the same controller as the WD Red SN700. The review tested the 2022 launch drive. No teardown of a GBC1D drive was found. Bridge chips: Intel Titan Ridge JHL7440 for Thunderbolt 3 and the ASMedia ASM2362 for USB 3.2 Gen 2. TheSSDReview names the same chips9Reviewthessdreview.com/hardware/portable-ssds/sandisk-professional-pro-g40-thunderbolt-3-dual-mode-portable-ssd-review-unbelievable-3-1gb-s-data-transfer-speedsRead 15 October 2026The review could not open the case. It says the drive uses a SanDisk SN750e M.2 SSD with an Intel JHL7440 Thunderbolt 3 controller and an ASMedia ASM2362 USB 3.2 controller

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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TLC6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Text: 1TB of 96-layer BiCS4 TLC in two 512GB packages

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

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Sandisk BiCS4 TLC6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Spec table row Memory reads SanDisk 96-Layer BiCS4, the same for 1TB and 2TB. Stored for the base 2TB as the maker for all capacities. Not checked on a GBC1D drive

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

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966Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 202696 layers from the Memory row

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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DRAM6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Spec table row DRAM reads DDR4 for both capacities. Text: the drive has DRAM, so no Host Memory Buffer

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.

4,000MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Up to 4000 MB/s read for the 2TB and 4TB models. Footnote 2: based on internal testing, performance may be lower depending on host device, interface, usage conditions and other factors. No test host is named2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Sequential Read Performance up to 4000MB/s for 2TB and 4TB

3,000MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Data Transfer Rate row, Thunderbolt 3: up to 3000MB/s read. USB-C: up to 1050MB/s read, not stored. Footnote: internal testing, 1 MB/s = 1 million bytes per second, performance may vary by host device, usage conditions and drive capacity. The same figure is given for all three capacities

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

3,800MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Up to 3800 MB/s write. The data sheet also claims 3100 MB/s average sustained write for the 2TB and 4TB models, which is a maker claim and is not stored2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Sequential Write Performance up to 3800MB/s for 2TB and 4TB

2,500MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Thunderbolt 3: up to 2500MB/s write. USB-C: up to 1000MB/s write, not stored. Same figure for all three capacities

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.

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

Min5Max35°C1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Operating Temperature row: 41 to 95 F | 5 to 35 C

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

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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.

4,017MB/s4Reviewgadgety.co.ilRead 14 October 20262TB model. Hebrew review dated 2026-09-17, CrystalDiskMark 9.0.3 x64 screenshot, 3 passes, 4 GiB test file, drive D: 0 percent used (0/1863GiB), so the drive was empty. Host: Lenovo Yoga Slim 7 Ultra (Intel Panther Lake) on its Thunderbolt 4 port, which the review says is USB4 compatible. KitGuru and Tom's Hardware have not reviewed this drive, so this reviewer is used. SEQ1M Q8T1 read 4016.99 MB/s, about 0.4 percent above the 4000 MB/s up-to claim

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

3,231MB/s4Reviewgadgety.co.ilRead 14 October 20262TB model. Same run, SEQ1M Q8T1 write 3230.51 MB/s, below the 3800 MB/s up-to burst claim and above the 3100 MB/s average sustained write claim

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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.

37.11MB/s4Reviewgadgety.co.ilRead 14 October 20262TB model. Same run, RND4K Q1T1 read 37.11 MB/s, printed in MB/s. The review's V2 comparison run shows 28.27 MB/s for the same row

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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.

7.08MB/s4Reviewgadgety.co.ilRead 14 October 20262TB model. Same run, RND4K Q1T1 write 7.08 MB/s, printed in MB/s. The review's V2 comparison run shows 80.78 MB/s for the same row, so this is a real and much lower queue depth 1 write figure. The review's AS SSD run on the same drive reads 4K write 10.20 MB/s

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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.

IP651Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Durability row reads IP65, rated for water and dust resistance, with drop protection up to 3 meters. Footnote 3: 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 use2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026IP65 rating. Text reads IP65 water and dust resistance paired with up to 3-meter drop protection3Press 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 2026Extreme and Extreme PRO SSDs are resistant to 3-meter drops and have IP65 ratings

IP681Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Key features: high-level IP68 dust/water resistance

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

3m1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Drop protection up to 3 meters, based on internal testing. The data sheet names no surface2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Up to 3-meter drop protection3Press 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 2026Resistant up to 3 meter drops

3m1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Key features: up to 3m drop protection, footnote 3 based on internal testing. The surface is not stated in the sheet. The 2022 press release says the drop was onto a carpeted concrete floor3Press releasewesterndigital.com/de-at/company/newsroom/press-releases/2022/2022-10-05-western-digital-turbocharges-versatility-with-new-sandisk-professional-pro-g40-ssdRead 15 October 2026Footnote says the 3m drop was tested on a carpeted concrete floor. Launch speeds in the release were up to 2700MB/s read and 1900MB/s write over Thunderbolt 3

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.

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-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Highlights read 256-bit AES encryption with password protection. Footnote 4: password protection uses 256-bit AES, is supported by Windows 10+ and macOS v13+ and needs a software download. The press release and the Sandisk page call it 256-bit AES hardware encryption2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Features read keep files secure with 256-bit AES encryption with password protection. The text adds 256-bit AES hardware encryption3Press 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 2026The Extreme and Extreme PRO SSDs have password protection included with 256-bit AES hardware encryption

Not available

Software

SANDISK app1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Footnote 7: download and installation of the SANDISK app is required. The app is compatible with macOS 13+, Windows 10+, Android 13+ and iOS 15+

SanDisk SSD Dashboard6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Text: SanDisk also provides its own SSD Dashboard 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.

Windows, macOS, Android, iOS, iPadOS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026System compatibility row reads macOS 13+, Windows 10+, Android 13+, iOS 15+ (with SANDISK App) and iPadOS 15+ (with Files App). Compatible with a range of USB Type-C laptops, tablets and smartphones2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Compatibility reads Android 13+, iPadOS 15+, macOS 13+, Windows 10+. The data sheet adds iOS 15+ with the SANDISK app

Windows, macOS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Operating Systems row: macOS 10.13+ (Time Machine compatible), Windows 10+. The drive ships formatted exFAT, APFS via reformat

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.

Length110Width58Height10mm(4.3 × 2.3 × 0.4 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Product dimensions 2.28 x 4.33 x 0.39 in, 58 x 110 x 10 mm. The 110 mm side is the length and 58 mm is the width4Reviewgadgety.co.ilRead 14 October 2026Review reads 10 x 58 x 110 mm

Length111Width58Height12mm(4.4 × 2.3 × 0.5 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Size (LxWxH) row: 4.36 x 2.28 x 0.47 in | 111 x 58 x 12 mm. The store page prints 4.37 x 2.28 x 0.47 in

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.

65.2g(2.3 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Product weight 0.14 lb, 65.2 g4Reviewgadgety.co.ilRead 14 October 2026Review reads 65.2 g

122.3g(4.3 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Weight row: 1TB 121.2 g, 2TB 122.3 g and 4TB 123.1 g. Base value is the 2TB model

In the box

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In the box

SANDISK Extreme PRO Portable SSD2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026In The Box reads SANDISK Extreme PRO Portable SSD for each capacity. No cable is listed, so no cable is stored

PRO-G40 SSD, Thunderbolt 3 (40Gbps) Cable, Quick Start Guide1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Box contents row: PRO-G40 SSD, Thunderbolt 3 (40Gbps) Cable and Quick Start Guide

Cables includediCables supplied with an external drive.

ASandisk Extreme PRO Portable SSD (V3)

Not available

BSandisk Professional PRO-G40 SSD

Type	Length (m)	Count
USB-C to USB-C	0.2	1

Source6Reviewtomshardware.com/reviews/sandisk-pro-g40-ssd-reviewRead 15 October 2026Text: a relatively short 20cm (about 8 inch) USB Type-C to Type-C cable. TheSSDReview also says 20cm / 8 inch9Reviewthessdreview.com/hardware/portable-ssds/sandisk-professional-pro-g40-thunderbolt-3-dual-mode-portable-ssd-review-unbelievable-3-1gb-s-data-transfer-speedsRead 15 October 2026Comes with a 20cm / 8 inch Thunderbolt 3 cable

Links

Not compared

Product page

www.sandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v32Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 2026Sandisk US product page for the SANDISK Extreme PRO Portable SSD (V3)

www.sandisk.com/products/ssd/external-ssd/sandisk-professional-pro-g40-ssd2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-professional-pro-g40-ssdRead 15 October 2026SanDisk US product page for the PRO-G40 SSD with a capacity picker for 1TB, 2TB and 4TB. Its spec table repeats the data sheet: up to 3000MB/s read and 2500MB/s write, Thunderbolt 3 and USB 3.2 Gen 2, 5-year limited warranty and the GBC1D part numbers

Spec sheet

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026SANDISK Extreme PRO Portable SSD data sheet on documents.sandisk.com, copyright 2026

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 2026Two-page SanDisk data sheet for the PRO-G40 SSD, PDF created 2023-12-01, on documents.sandisk.com. It lists 1TB, 2TB and 4TB with the GBC1D part numbers

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 spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-pro-portable-ssd/data-sheet-extreme-pro-portable-ssd.pdfRead 14 October 2026Limited warranty 5 years. The data sheet is global and names no market2Maker product pagesandisk.com/products/ssd/external-ssd/sandisk-extreme-pro-portable-ssd-v3Read 14 October 20265-Year Limited Warranty3Press 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 2026Five-year limited warranty for the Extreme PRO

5years1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk-pro/product/portable-drives/pro-g40-ssd/data-sheet-sandisk-professional-pro-g40-ssd.pdfRead 15 October 20265 YR limited warranty. The sheet points to sandisk.com/wug for terms and names no market

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