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LaCie Rugged SSD4 vs Sandisk Professional PRO-G40 SSD

A

Product A: LaCie

Rugged SSD4

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

ALaCie Rugged SSD4

BSandisk Professional PRO-G40 SSD

General

5 of 9 differ

Series

Rugged2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page text calls the drive one of the high-performance Rugged portable SSDs. The what's-included list names it LaCie Rugged SSD4

Not available

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

STND1000400, STND2000400, STND40004001Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Ordering table: STND1000400 (1TB), STND2000400 (2TB), STND4000400 (4TB), region WW

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

763649185964, 8719706046206, 763649185988, 8719706046220, 763649186008, 87197060462441Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Ordering table: UPC and EAN per model. 1TB 763649185964 and 8719706046206. 2TB 763649185988 and 8719706046220. 4TB 763649186008 and 8719706046244. Multi-pack UPCs are not stored

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.

15 September 20254Press articlestoragenewsletter.com/2025/09/17/seagate-launches-lacie-rugged-ssd4-thunderbolt-5-up-to-4tb-portable-ssdRead 14 October 2026StorageNewsletter, 2025-09-17, repeats the Seagate announcement. PCWorld's review is dated 2025-09-15, the same day as the Seagate release

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 pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026The Wayback Machine holds captures of the product page up to July 2026. Retailers such as Wex list the 2TB. Stock is mixed4Press articlestoragenewsletter.com/2025/09/17/seagate-launches-lacie-rugged-ssd4-thunderbolt-5-up-to-4tb-portable-ssdRead 14 October 2026Sold at launch through the Seagate webstore

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.

Not available

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.

$249.994Press articlestoragenewsletter.com/2025/09/17/seagate-launches-lacie-rugged-ssd4-thunderbolt-5-up-to-4tb-portable-ssdRead 14 October 2026Available for $134.99 (1TB), $249.99 (2TB) and $479.99 (4TB). StorageReview, TechRadar and Macworld give the same prices. Excl. sales tax10Measurementstoragereview.com/review/lacie-rugged-ssd4-review-usb4-performance-in-a-tough-travel-ready-shellRead 14 October 2026Review lists the MSRP as $134.99, $249.99 and $479.9911Reviewmacworld.com/article/2939911/lacie-rugged-ssd4-review-2.htmlRead 14 October 2026Review dated 2025-10-14 lists 1TB $135, 2TB $250 and 4TB $480, rounded from the launch prices

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.

€299.995Press articlephototrend.fr/2025/09/lacie-rugged-ssd4-usb4Read 14 October 2026French launch coverage, available now: 1 To 169,99 EUR, 2 To 299,99 EUR, 4 To 529,99 EUR. France, incl. VAT. A German Seagate price was not found

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

Orange4Press articlestoragenewsletter.com/2025/09/17/seagate-launches-lacie-rugged-ssd4-thunderbolt-5-up-to-4tb-portable-ssdRead 14 October 2026Text names the signature orange bumper, designed by Neil Poulton

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)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Portable drive in its own case with a USB-C port8Reviewkitguru.net/components/ssd-drives/simon-crisp/lacie-rugged-ssd4-4tb-review/all/1Read 14 October 2026Form Factor: external

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.

1 TB, 2 TB, 4 TB1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Ordering table lists 1TB, 2TB and 4TB. The data sheet footnote says 1 TB equals one trillion bytes

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)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026System Requirements: Interface USB 40 Gbps, connector USB-C. Works with USB-C hosts at USB 40, 20, 10 and 5 Gbps and Thunderbolt 5, 4 and 3. The drive is a USB 40 Gbps drive that Thunderbolt hosts can run, so it is stored as USB48Reviewkitguru.net/components/ssd-drives/simon-crisp/lacie-rugged-ssd4-4tb-review/all/1Read 14 October 2026Interface: USB 40Gbps (USB-C). An NVMe PCIe Gen 4 SSD sits inside. The reviewer lists NAND and controller as not specified

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 spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026A USB-C cable is included and the drive has a USB-C port behind a removable silicone cap

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.

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.

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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.

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.

Not available

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

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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)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Text reads read speeds up to 4,000 MB/s. The data sheet gives no write figure. The test host is not named2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page reads speeds up to 4,000MB/s with USB 40Gbps and Thunderbolt 5 compatibility

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/s4Press articlestoragenewsletter.com/2025/09/17/seagate-launches-lacie-rugged-ssd4-thunderbolt-5-up-to-4tb-portable-ssdRead 14 October 2026Text reads up to 4,000MB/s read and 3,800MB/s write speeds, from the Seagate announcement. PCPer adds that LaCie said writes reach 3,800 MB/s for the first 4 percent of the drive and then fall to 850 to 1,750 MB/s. Seagate gives no per-capacity figures, so the base value covers all rows

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.

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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

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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.

IP541Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Footnote 2: rated IP54 when the cap is properly seated on the device2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page reads IP54-rated, footnote: rated IP54 when the cap is properly seated on the device

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)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Footnote 3: 3m drop-proof based on internal testing, shock resistance MIL-STD-810G method 516.6, Procedure IV Transit Drop. The text also says 1 tonne pressure resistance, which is not stored2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page reads 3m drop resistance and 1-ton pressure resistance, with the MIL-STD-810G method 516.6 Procedure IV footnote

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.

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Software

LaCie Toolkit1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026What's Included: LaCie Toolkit Backup and Sync Software2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page reads LaCie Toolkit software for on-demand backups3Owner's manualseagate.com/manuals/lacie/rugged-ssd4/welcomeRead 14 October 2026Getting Started page: Toolkit manages mirror folders and backup plans (Windows only)

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.

macOS, iPadOS, iOS, Windows, ChromeOS, Android, Other1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Text and System Requirements: macOS, iPadOS, iOS, Windows, ChromeOS, Android and gaming console systems. Consoles are not named, so they are stored as other2Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026Page reads USB-C connectivity with macOS, iPadOS, iOS, Windows, ChromeOS, Android and gaming console systems

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.

Length105.34Width66.87Height17.33mm(4.1 × 2.6 × 0.7 in)1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Product Dimensions column: length 17.33 mm, width 66.87 mm, depth 105.34 mm. The long side 105.34 is stored as length and 17.33 as height8Reviewkitguru.net/components/ssd-drives/simon-crisp/lacie-rugged-ssd4-4tb-review/all/1Read 14 October 2026Physical Specifications: 17.33 x 66.87 x 105.34mm, same as the data sheet

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.

108g(3.8 oz)1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Product Dimensions column: 0.108 kg, 0.238 lb8Reviewkitguru.net/components/ssd-drives/simon-crisp/lacie-rugged-ssd4-4tb-review/all/1Read 14 October 2026Drive Weight: 108g

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

LaCie Rugged SSD4, Silicone cap, USB-C cable (40 Gbps), Quick Install Guide, LaCie Toolkit Backup and Sync Software, Includes two-month trial to Adobe Creative Cloud Pro, Three-year Rescue Data Recovery Services1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026What's Included list, verbatim3Owner's manualseagate.com/manuals/lacie/rugged-ssd4/welcomeRead 14 October 2026The manual's box content is shorter than the data sheet list. The data sheet list 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.

ALaCie Rugged SSD4

Type	Length (m)	Count
USB-C to USB-C	0.3	1

Source1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026What's Included reads USB-C cable (40 Gbps). The cable length is from PCPer. Footnote 1 mentions a C to A cable adapter, sold separately3Owner's manualseagate.com/manuals/lacie/rugged-ssd4/welcomeRead 14 October 2026Welcome page, Box content: LaCie Rugged SSD4, USB-C to USB-C cable, Quick install guide. The cable length is not in the manual6Reviewpcper.com/2025/09/lacie-rugged-ssd4-portable-ssd-review-a-sensible-usb4-optionRead 14 October 2026Review text: a matching orange USB4 cable, 0.3 meters in length. The SSD Review calls it a 12 inch orange 40Gbps cable7Reviewthessdreview.com/hardware/portable-ssds/lacie-rugged-ssd4-2tb-usb4-portable-ssd-review-high-speed-data-transfer-in-any-terrainRead 14 October 2026Review text: comes with a 12 inch orange 40Gbps cable, which is 0.3048 m

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.seagate.com/products/creative-pro/lacie-rugged-ssd42Maker product pageseagate.com/products/creative-pro/lacie-rugged-ssd4Read 14 October 2026The live page returned a Cloudflare rate-limit error (1015) on 2026-10-14. It was read through the Wayback Machine capture of 2026-03-25

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

www.seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdf1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Seagate data sheet DS25.3-2510US, English (UK) file. The en_US file name returned 404

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

www.seagate.com/manuals/lacie/rugged-ssd43Owner's manualseagate.com/manuals/lacie/rugged-ssd4/welcomeRead 14 October 2026LaCie Rugged SSD4 User Manual on the Seagate site. The live site returned a rate-limit error on 2026-10-14, so the pages were read through the Wayback Machine copies of October 2025

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.

3years1Maker spec sheet (PDF)seagate.com/content/dam/seagate/en_gb/content-fragments/products/datasheets/lacie-rugged-ssd4/lacie-rugged-ssd4-DS25-3-2510US-en_GB.pdfRead 14 October 2026Ordering table: limited warranty 3 years, with Rescue Data Recovery Services (not available in all countries)

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.