Western Digital

G-Technology 4TB G-DRIVE Mobile USB-C (USB 3.1 Gen 1) Portable External Hard Drive, Silver- 0G10348

Status: G-Technology 4TB G-DRIVE Mobile USB-C (4TB hard drive): Unavailable on Amazon as of 2026-10-18 16:22 UTC. Closest in-stock match (same 4TB hard drive): WD 4TB My Passport Ultra, $238.99 on Amazon as of 2026-10-20 18:15 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $238.99 🛒 Search eBay for this model

Bottom line: The G-Technology 4TB G-DRIVE Mobile USB-C Portable External Hard Drive: 4TB capacity handles large 4K video and RAW photo libraries without constant offloading; main trade-off: USB 3.1 Gen 1 caps throughput well below a Thunderbolt 3 or NVMe enclosure.

Unavailable on Amazon as of 2026-10-18 16:22 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same 4TB hard drive: WD 4TB My Passport Ultra — $238.99 on Amazon as of 2026-10-20 18:15 UTC (price may vary).

View Current Price — $238.99

Same 4TB hard drive: Silicon Power 4TB USB-C USB 3.1 Gen1 Rugged… — $239.97 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $239.97

Same 4TB hard drive: Western Digital 4TB My Passport Ultra for Mac… — $253.21 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $253.21

Original listing (currently unavailable) → Compare to similar external storage

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-18

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 4TB capacity handles large 4K video and RAW photo libraries without constant offloading
✓ Transfer speeds up to 140MB/s over USB 3.1 Gen 1
✓ Ships with both USB-C and USB-A cables, no adapter hunting
✓ Aluminum enclosure resists travel dings better than plastic-shelled portables
✓ Native Time Machine support means Mac backups work the moment you plug in

Cons

✗ USB 3.1 Gen 1 caps throughput well below a Thunderbolt 3 or NVMe enclosure
✗ Spinning platters, so it is slower and less drop-tolerant than an SSD
✗ Ships Mac-formatted; Windows users must reformat before first use
✗ Aluminum shell adds weight versus plastic portable drives of the same capacity

Manufacturer description

The G-Technology G-DRIVE Mobile USB-C from Western Digital packs 4TB of portable storage into a machined aluminum enclosure built to sit next to a laptop without looking like an afterthought. Transfer speeds reach up to 140MB/s over USB 3.1 Gen 1, which is enough headroom to offload a shoot's worth of 4K footage or a photo library between coffees. Both USB-C and USB-A cables ship in the box, so the drive connects to a modern MacBook or an older USB 3.0 tower without hunting for an adapter, and it stays compatible with Thunderbolt 3 ports. Mac users get native Time Machine support out of the…

SpecPicks Verdict

SpecPicks scored G-Technology 4TB G-DRIVE Mobile USB-C Portable External Hard Drive using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. Western Digital's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does this drive work with a Mac out of the box?

Yes. The G-DRIVE mobile USB-C ships Mac ready with native Time Machine support, so it works as a backup target as soon as you connect it.

Can I use it with Windows?

Yes, but you will need to reformat it first. The drive is Mac-formatted at the factory and is designed to be easily reformatted for Windows.

How fast is it?

Western Digital lists transfer speeds up to 140MB/s over the USB 3.1 Gen 1 interface. Real-world speeds vary with file size and host port.

What cables are included?

Both a USB-C and a USB-A cable are in the box, making the drive compatible with USB-C, Thunderbolt 3, and older USB 3.0 computers.

Is my data secure on this drive?

The drive supports password protection and encryption to help protect your files. Check the product listing for the current software and warranty details.

Key Features

Stylish, aluminum design
With capacities up to 4TB of portable storage (as used for storage capacity, one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.)
USB-C ready; USB 3.0 and Thunderbolt 3 compatible
Mac ready; easily reformatted for Windows

Full Specifications

Brand	Western Digital
Color	Silver
Model Name	G-DRIVE Mobile
Unit Count	1 Count
Form Factor	Portable
Media Speed	140 MB/s
Connectivity	USB-C
Model Number	0G10348
Compatibility	Mac
Built-In Media	(1) USB-C to USB-A cable (compatible with USB 3.0), (1) USB-C to USB-C cable, 3-Year limited manufacturer warranty, G-DRIVE mobile USB-C hard drive, Quick Start Guide
Hard-Drive Size	4000 GB
Mfr Part Number	0G10348
Number of Items	1
Special Feature	Portable
Hardware Platform	Mac
Installation Type	External Hard Drive
Compatible Devices	Desktop, Laptop, Television
Data Transfer Rate	140 megabits_per_second
Enclosure Material	Aluminum
Additional Features	Portable

Ready to buy?

Amazon shows no buyable offer for G-Technology 4TB G-DRIVE Mobile USB-C at the last check. The closest in-stock match with the same 4TB hard drive is WD 4TB My Passport Ultra. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $238.99