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G-Technology G-DRIVE Data Recovery

G-Technology's G-DRIVE line was built for Mac video and photo workflows: desktop and mobile drives, usually Mac-formatted, connected by USB-C or Thunderbolt. The G-DRIVE line later moved under SanDisk Professional, but older G-DRIVEs are still in heavy use. When one stops mounting, clicks, or goes dark, we recover it by mail.

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G-DRIVE models we recover

G-DRIVE (desktop)

Single-drive aluminum desktop units with a 3.5-inch drive inside, often an enterprise-class HGST or WD drive in later models, powered by an external adapter.

G-DRIVE with Thunderbolt

Desktop versions with Thunderbolt connectivity, and USB-C on many units, often used for editing straight off the drive.

G-DRIVE mobile

Portable 2.5-inch hard drive versions powered over the USB or Thunderbolt connection.

G-DRIVE mobile SSD & ArmorATD

Rugged portables for set and field use: the mobile SSD with flash storage, and the ArmorATD with a hard drive inside a protective shell.

G-DRIVE ev series

Modular drives designed to slot into G-Technology docks and readers, in hard drive and SSD versions.

SanDisk Professional G-DRIVE

The G-DRIVE line later moved under SanDisk Professional branding; newer units carry that name but fill the same role.

How a G-DRIVE stores your data

A G-DRIVE is a standard hard drive or SSD connected to a USB or Thunderbolt bridge board inside an aluminum enclosure. Desktop models use 3.5-inch drives and an external power adapter; mobile models use 2.5-inch drives powered over the cable. Because these drives often hold long video projects, a single failing drive can mean large files spread across the whole surface, and partially written footage if the drive dropped out mid-capture.

G-DRIVEs ship formatted for Mac, typically HFS+ (Mac OS Extended) on older units, and many users reformat them to APFS. Both file systems keep critical structures, such as the catalog file in HFS+ or the container metadata in APFS, that can be damaged by an unexpected disconnect or by bad sectors. When that happens, the drive may appear in Disk Utility but refuse to mount. If you encrypted the volume in macOS, you'll need that password for recovery.

Common G-DRIVE failures

Shows in Disk Utility but won't mount

The most common G-DRIVE complaint. It usually means file-system damage, or a failing drive underneath that can't read the structures macOS needs. Running First Aid repeatedly on a struggling drive can make things worse.

Clicking or not spinning

Desktop G-DRIVEs carry heavy 3.5-inch drives that can fail mechanically from wear or a knock while running. Clicking, buzzing, or silence point to head or motor problems that need a cleanroom.

Power adapter or bridge failure

A desktop G-DRIVE that won't light up may have a failed power adapter or bridge board while the drive inside is healthy. A replacement adapter must match exactly; wrong voltage or polarity can destroy the electronics.

Thunderbolt or USB-C port damage

Ports on drives that live on editing desks get plugged and unplugged constantly. A loose or damaged port can cause dropouts that look like drive failure, or cut the drive off entirely.

Dropouts during capture or editing

A drive that disconnects mid-transfer can leave partially written video files and a damaged catalog. Stop using it before the damage spreads.

Corrupted File System →Clicking Hard Drive →PCB & Electrical Failure →Hard Drive Not Spinning →

What not to do with a failing G-DRIVE

  • ✕Don't run Disk Utility First Aid over and over on a G-DRIVE that won't mount — each pass stresses a possibly failing drive and can write changes that complicate recovery.
  • ✕Don't let Windows format it — G-DRIVEs are Mac-formatted, so Windows sees them as unreadable even when the data is fine.
  • ✕Don't erase or repartition the drive in Disk Utility to get it mounting again — that replaces the file system that points to your footage.
  • ✕Don't use a spare power adapter that doesn't exactly match the original — wrong voltage or polarity can burn out the bridge board and the drive's electronics.
  • ✕Don't keep powering a G-DRIVE that clicks or buzzes — every spin-up risks damaging the platters.

Related guides

Mac G-Drive Won't Mount on Mac? How to Recover It Hard Drive External Hard Drive Not Showing Up? A Step-by-Step Fix Hard Drive Hard Drive Clicking? Stop and Do These 5 Things First Hard Drive How to Recover Data from a Dead Hard Drive (Safely)

G-DRIVE recovery — common questions

My G-DRIVE shows in Disk Utility but won't mount. What does that mean?+
Usually the file system is damaged, or the drive is struggling to read the structures macOS needs. One First Aid attempt on a drive that sounds and behaves normally is reasonable; if it fails, or the drive is slow, clicking, or freezing, stop and get it recovered rather than retrying.
G-Technology changed hands. Does that affect recovery?+
No. G-Technology became part of Western Digital, and the G-DRIVE line later moved under SanDisk Professional branding. For warranty questions, check with the current brand owner. For recovery, the badge doesn't matter; the drive and file system inside are what we work on.
Can I plug my G-DRIVE into a Windows PC to copy files off?+
Not directly. Windows can't natively read HFS+ or APFS, and it may offer to format the drive. Use a Mac. If the drive won't mount on any Mac, don't try workarounds on Windows; send it in.
How much does G-DRIVE data recovery cost?+
One flat $1,200 for a single drive, quoted before you ship — no diagnostic fee, and $0 if we can't recover your data.

Other G-Technology drives

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