This article covers サンディスクプロフェッショナル 外付け ポータブルSSD 500GB G-DRIVE SSD 最大読取り1050 MB.

Overview

Sandisk Professional, a brand under Western Digital, has launched the G-DRIVE SSD as a rugged portable SSD aimed at creative professionals and mobile power users. This 500GB version uses a USB 3.2 Gen 2 interface to deliver sequential read speeds of up to 1,050 MB/s, making it a fast companion for video editing, photo backup, or moving large files between workstations. The drive is IP67-rated for water and dust resistance and survives drops from up to 3 meters, so it is built to handle fieldwork and travel without worry.
Out of the box, the drive is formatted HFS+J, which is native for macOS, and it supports Apple Time Machine for effortless backups. Windows users can reformat it to NTFS or exFAT for cross-platform use. The package includes both USB-C to USB-C and USB-C to USB-A cables, so it connects to modern laptops as well as older desktops. The unit comes with a 5-year limited warranty, giving peace of mind that many budget portables do not offer.
In the market, the G-DRIVE SSD sits in the upper tier of portable SSDs, priced above entry-level models but justified by its ruggedness, speed, and warranty. It is not a barebones internal drive; it is a complete, ready-to-use external solution for professionals who need reliable, fast storage on the go.

Compatibility Guide

Interfacing is via USB 3.2 Gen 2 (10 Gbps), but the drive is backward compatible with USB 3.1 Gen 1 (5 Gbps) and USB 2.0 (480 Mbps). To achieve the advertised 1,050 MB/s read speed, your computer must have a USB 3.2 Gen 2 port or a Thunderbolt 3/4 port that supports 10Gbps signaling. On older USB 2.0 ports, the drive works but transfer rates will be limited to around 40 MB/s.
The form factor is a 2.5-inch portable enclosure, so no internal installation is needed. It is powered via the USB bus, eliminating the need for an external power adapter. Both macOS 10.11 and later, and Windows 10/11 are supported. However, the drive is pre-formatted as HFS+J (macOS Extended Journaled), so if you plan to use it on a Windows machine, you will need to reformat it to NTFS, exFAT, or a similar file system. ExFAT is recommended for cross-platform use.
There are no compatibility concerns regarding computer chassis or internal connectors because the drive is entirely external. It works with laptops, mini PCs, desktops, and even game consoles that support USB mass storage. For best performance, always connect directly to a USB 3.2 Gen 2 port rather than through a hub that might limit bandwidth.

Product Info

The G-DRIVE SSD 500GB (model SDPS11A-500G-GBANB) was released in 2021 and is part of the SanDisk Professional lineup targeting demanding users. The official MSRP in Japan is around ¥23,810, though street prices may vary. The drive carries a 5-year manufacturer warranty, which is notably longer than the typical 1-3 years on consumer-grade external SSDs.
Key specs include a 500GB capacity, USB 3.2 Gen 2 interface, maximum read speed of 1,050 MB/s, IP67 water and dust resistance, and a 3-meter drop rating. Two cables are included (USB-C to C and C to A). The unit is pre-formatted HFS+J and also supports Apple Time Machine. No explicit write speed or TBW (terabytes written) figure is published, so endurance figures are not officially supplied.
Market positioning: this is a mid-to-high-end portable SSD. Compared to entry-level portables (often USB 3.1 Gen 1) that top out around 500 MB/s, the G-DRIVE offers double the read speed plus ruggedization. It is not the cheapest per GB, but the combination of IP67, 3m drop resilience, and a 5-year warranty makes it a premium option for professionals who need data security in harsh environments.

Best Use Cases

  • Video and photo professionals working in the field: The IP67 rating and drop resistance allow you to back up footage immediately after a shoot, even in dusty or rainy conditions. However, 500GB fills quickly with 4K footage, so professionals with heavy capture workloads should opt for the 1TB version. This 500GB model is best for short assignments or as a secondary drive.
  • Mac users needing Time Machine backup: Pre-formatted as HFS+J, the drive works seamlessly with Time Machine. Just plug it in and set up the backup schedule. If you later switch to a PC, you can reformat it to exFAT, but note that reformatting erases all data.
  • Business travelers moving large files between workstations: At 1,050 MB/s read, you can copy a 10GB project in under 10 seconds on a compatible port. The rugged shell protects against knocks in luggage. Yet, if your laptop only has USB 3.0 (5 Gbps) ports, you will see about half the speed, so upgrade your port if you need maximum throughput.
  • Users who prioritize long warranty and reliability: The 5-year warranty is a big differentiator. Unlike many consumer drives that offer only 1-3 years, this gives longer peace of mind for investment. However, if you are on a strict budget and do

Product Disclosure (Amazon)

  • Manufacturer: サンディスクプロフェッショナル(SanDisk Professional)
  • Seller: U-li mart
  • Fulfilled by: U-li mart
  • ASIN: B09299S4S6
  • Note: This article covers a manufacturer-made product based on Amazon listing details.