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Sandisk Extreme Portable SSD (V2) vs Sandisk Professional PRO-G40 SSD

A

Product A: Sandisk

Extreme Portable SSD (V2)

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 Portable SSD (V2)

BSandisk Professional PRO-G40 SSD

General

6 of 9 differ

Series

Extreme1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Maker line name is SanDisk Extreme

Not available

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

SDSSDE61-500G-G25, SDSSDE61-1T00-G25, SDSSDE61-1T00-G25B, SDSSDE61-1T00-G25M, SDSSDE61-2T00-G25, SDSSDE61-2T00-G25B, SDSSDE61-2T00-G25M, SDSSDE61-4T00-G25, SDSSDE61-4T00-G25B, SDSSDE61-4T00-G25M, SDSSDE61-8T00-G251Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Model Numbers table: 500GB SDSSDE61-500G-G25. 1TB, 2TB and 4TB each have G25, G25B (Sky Blue) and G25M (Monterey Blue). 8TB SDSSDE61-8T00-G25

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

619659182588, 619659182557, 619659204778, 619659205157, 619659184674, 619659205058, 619659205041, 619659184704, 619659204754, 619659205027, 6196592089981Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026UPCs are in the page's SKU data. 500GB 619659182588. 1TB 619659182557, 619659204778 (G25B), 619659205157 (G25M). 2TB 619659184674, 619659205058, 619659205041. 4TB 619659184704, 619659204754, 619659205027. 8TB 619659208998

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.

30 September 20203Reviewstoragereview.com/review/sandisk-extreme-portable-ssd-v2-reviewRead 15 October 202630 September 2020, the launch day named in the review4Reviewlegitreviews.com/sandisk-extreme-portable-ssd-v2-1tb-review_222422Read 15 October 202630 September 2020

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

Available1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Page lists the SKUs with Buy and Notify Me actions and a current 2023 datasheet. Amazon US stock comes from the job's selection data and was not opened by the agent

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.

Not available

Not available

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.

Sandisk Extreme Portable SSD (V3)6Press 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.7Reviewtechradar.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.

Not available

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

$354.994Reviewlegitreviews.com/sandisk-extreme-portable-ssd-v2-1tb-review_222422Read 15 October 2026Review of 30 September 2020 prints suggested retail prices of $119.99 (500GB), $199.99 (1TB) and $354.99 (2TB, available later in 2020). The base value is the 2TB price. US dollars before tax. The review says these are suggested retail prices, not street prices. No price for 4TB or 8TB was found

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.

Not available

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ColoursiThe maker's own colour names

Black, Sky Blue, Monterey Blue1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Model Numbers table labels Black, Sky Blue and Monterey Blue. 500GB and 8TB are listed in black only

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 product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Page breadcrumb reads Solid State (SSD) and External SSD. The drive is a portable drive with a USB Type-C port

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.

500 GB, 1 TB, 2 TB, 4 TB, 8 TB1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Capacity selector lists 500GB, 1TB, 2TB, 4TB and 8TB. Footnote 1: 1TB is 1,000,000,000,000 bytes. The 2023 datasheet lists only 500GB to 4TB2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Available capacities row reads 500GB, 1TB, 2TB, 4TB. The product page adds 8TB

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.

USB 3.2 Gen 2 (10 Gbps)1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Interface highlight reads USB 3.2 Gen 22Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Interface row reads USB 3.2 Gen 23Reviewstoragereview.com/review/sandisk-extreme-portable-ssd-v2-reviewRead 15 October 2026Specifications table: USB 3.2 Gen 2 (10Gb/s), backward compatible with USB 3.2 Gen 1, USB Type-C connection

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.

Yes1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026The USB-C to USB-C cable is a separate item in the box, for a drive with a USB-C port. The page does not use the word detachable

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

5 of 7 differ

ControlleriController maker and model as named by the maker or a review. On an external drive, the controller of the SSD inside, not the USB or Thunderbolt bridge chip. The bridge chip goes in the source note.

Not available

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.

Not available

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.

Not available

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.

Not available

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.

1,050MB/s1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Footnote 2: up to 1050MB/s read based on internal testing. Test system: ASUS ROG STRIX Z270E GAMING with an ASMedia USB 3.1 Gen 2 controller, 1TB WD_Black SN750 NVMe, Intel Core i7-7700, Windows 10 Pro 64-bit. Performance may be lower depending on host device, interface and usage. The same figure is shown for every capacity2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Up to 1050MB/s read. Based on internal testing, host not named in the datasheet

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.

1,000MB/s1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Footnote 2: up to 1000MB/s write, same test system. The same figure is shown for every capacity2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Up to 1000MB/s write

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

1 of 3 differ

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°C2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Operating temperature 0 to 45 C. Storage range of -20 to 85 C is not stored3Reviewstoragereview.com/review/sandisk-extreme-portable-ssd-v2-reviewRead 15 October 20260 to 45 C

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

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

1 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.

IP651Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Footnote 5: IEC 60529 IP65, tested to withstand water flow (30 kPa) for 3 minutes, and limited dust contact does not interfere with operation. The 2020 launch coverage says IP55, and the maker's current page and datasheet say IP652Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Durability row reads IP65 rated for water and dust resistance

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 product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Up to three-meter drop protection, based on internal testing. The 2020 launch coverage says two meters. Surface and conditions are not stated2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Up to three-meter drop protection, based on internal testing

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 product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Page says included password protection featuring 256-bit AES hardware encryption. Footnote 4: password protection is supported by Windows 8, Windows 10 and macOS v10.9+ and does not work with USB Type-C smartphones2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Highlights read hardware encryption. Footnote 2: password protection uses 256-bit AES encryption

Not available

Software

SANDISK App1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Page features the SANDISK App from Google Play to unlock, access and back up files. Footnote 6: download and installation required. Footnote 4 names a software download for Mac password protection

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, iOS1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Compatibility reads USB Type-C devices (phones, laptops, tablets), iOS 13+, Android 11+, macOS v.11+ and Windows 10+. The page does not name iPadOS

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.

Length100.54Width52.42Height8.95mm(4 × 2.1 × 0.4 in)2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Dimensions row reads 3.96 x 2.06 x 0.35 in. (100.54 x 52.42 x 8.95 mm). The datasheet labels it H x W x L, but the figures are length, width and thickness. The product page gives 3.97 x 2.07 x 0.38 in., which is stored as the datasheet millimetres. StorageReview and Legit Reviews print the datasheet figures

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.

Not available

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

USB-C to USB-C Cable, USB-C to USB-A Adapter, Safety and Warranty Guide1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026In The Box reads USB-C to USB-C Cable, USB-C to USB-A Adapter, Safety and Warranty Guide3Reviewstoragereview.com/review/sandisk-extreme-portable-ssd-v2-reviewRead 15 October 2026Inside the box: the drive, a USB Type-C to USB Type-C cable and a USB Type-C to USB Type-A adapter

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 Portable SSD (V2)

Type	Count
USB-C to USB-C	1

Source1Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026One USB-C to USB-C cable. The page gives no cable length. The USB-C to USB-A adapter is not a cable and is not in this table

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/portable-ssd-sandisk-extreme-usb-3-21Maker product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 2026Maker page titled SanDisk Extreme Portable SSD. The V3 is a separate page and product

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-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdf2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 2026Data Sheet: SanDisk Extreme Portable SSD, dated 4/23, two pages. It is the maker's current datasheet for the V2

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 product pagesandisk.com/products/ssd/external-ssd/portable-ssd-sandisk-extreme-usb-3-2Read 15 October 20265-year limited warranty2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/portable-drives/extreme-usb-3-2-ssd/data-sheet-sandisk-extreme-usb-3-2-ssd.pdfRead 15 October 20265-year limited warranty in the US and 5 years in the rest of the world

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.