This article covers Oyen Digital U34 Bolt 1TB (USB4 40Gbps) NVMe Thunderbolt 4 (USB-C) ポータブルSSD 最大2800MB.

Overview

The Oyen Digital U34 Bolt 1TB is a rugged portable SSD that leverages USB4 and Thunderbolt 4/5 interfaces to deliver sequential read speeds up to 2800 MB/s. Its MIL-STD-810F rating ensures durability against drops, vibration, and dust, making it a reliable companion for on-location content creation.
Pre-formatted for macOS, the U34 Bolt works out of the box with MacBooks and Mac desktops, while Windows users can quickly reformat it to NTFS or exFAT. This drive sits at the high end of the portable SSD market, targeting professionals who need Thunderbolt‑class speed in a tough, pocket‑sized enclosure.

Compatibility Guide

The U34 Bolt uses a USB‑C port and is compatible with USB4, Thunderbolt 3/4/5, USB 3.2 Gen2×2 (20Gbps), and USB 3.2 Gen2 (10Gbps) hosts. The actual transfer speed will be limited by the host’s interface; for the full 2800 MB/s, a USB4 or Thunderbolt 4/5 port is required.
It works with Windows PCs, Macs, iPads with USB‑C, and some Android devices. Game consoles recognize it as external USB storage but performance will be constrained by the console’s USB controller.

Product Info

Released in late 2025, the U34 Bolt 1TB carries a retail price around ¥62,926. It comes with a 3‑year warranty backed by Oyen Digital’s US‑based support team.
Market positioning is high‑end portable storage. The combination of USB4 40Gbps interface, aluminum passive cooling, and MIL‑STD‑810F ruggedization is rare at this price point.

Best Use Cases

  • 4K/8K video editors – The 2800 MB/s read speed allows direct editing from the drive and fast offloading from cameras. The rugged build means you can take it on set without worry.
  • Field photographers – Drop‑ and dust‑resistant design protects your work in harsh environments. The aluminum core disperses heat effectively during long transfers.
  • Thunderbolt 4 laptop users – Max out the bandwidth of your MacBook Pro or high‑end Windows ultrabook. External storage that feels nearly as fast as internal.
  • Who should skip it – If your computer only has USB 3.0 (5Gbps), you’ll never see the speed benefits. For pure backup at lower cost, a slower HDD or SATA SSD makes more sense.

Things to Consider

To reach the advertised 2800 MB/s, you must connect to a USB4 or Thunderbolt 4/5 port. Plugging into a USB 3.2 Gen2 port will cap speeds around 1000 MB/s.
Oyen Digital does not publish TBW (total bytes written) figures for this drive, so heavy write workloads over several years could be a concern. If you need endurance guarantees, consider an enterprise‑grade external SSD.
The 1TB capacity may be insufficient for large media libraries. Check if a higher‑capacity version is available before purchasing.

FAQ

Q: Can I use this SSD with Windows?
A: Yes. Format the drive to NTFS or exFAT using Windows Disk Management. The drive is initially APFS for Mac.
Q: Will it run at full speed on a Thunderbolt 3 MacBook Pro?
A: Thunderbolt 3 theoretically supports 40 Gbps, but real‑world speeds depend on the controller and cable quality. Most Thunderbolt 3 hosts will achieve speeds close to 2800 MB/s, but it’s not guaranteed.
Q: Is it compatible with PS5?
A: The PS5 recognizes it as external USB storage for PS4 games and media. PS5 games can be stored but must be moved to internal storage to play. Performance will not match the internal NVMe SSD.

Product Disclosure (Amazon)

  • Manufacturer: Oyen Digital
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0FPGQJ65V
  • Note: This article covers a manufacturer-made product based on Amazon listing details.