This article covers IODATA USBメモリー 256GB USB 3.2 Gen 1対応 キャップ.
Overview
I-O DATA's BUM-3D256G/K is a practical USB 3.2 Gen 1 flash drive designed for everyday data transport. With 256GB of storage in a compact 17×55×8.2mm body weighing just 7.2g, it's easy to carry on a keychain or in a pocket. The protective cap and strap hole make it even more portable. This product is sold as a 3-pack, offering excellent value for users who need multiple drives for different purposes. Compatible with Windows 11, 10, and 8.1, the drive operates at up to 5Gbps (USB 3.0 speed) and works with any USB-A port. No drivers are required. The drive comes pre-formatted with a standard file system (FAT32/exFAT). I-O DATA provides a 1-year warranty, and the product is widely available in Japan through major retailers and online stores like .
Connectivity & Compatibility
The BUM-3D256G/K uses a USB-A connector and is backward compatible with USB 2.0 and USB 1.1 ports. It supports Windows 11/10/8.1 (other OS may work but are not officially supported). The drive can be used with desktop PCs, laptops, and some game consoles (check console compatibility). The strap hole allows attachment to a keyring or lanyard for easy carrying. Because it uses USB-A, owners of USB-C-only devices will need a USB-A to USB-C adapter.
Product Info
Released around 2024, this model is a current mainstream offering. It sits in the entry-to-mid tier segment, prioritizing reliability and ease of use over extreme speed. The 3-pack retails for approximately ¥23,000 (about ¥7,700 per drive). The warranty is 1 year. Only the drives are included in the box (no carry case or software). Available from , I-O DATA's official online shop, and major electronics retailers in Japan.
Best Use Cases
Office workers and students who need to transfer files between computers: the 3-pack lets you dedicate one drive for work, one for personal files, and one as a backup. The compact size fits in a pocket. Users who need a bootable OS or recovery drive: having multiple drives allows you to keep a Windows installation media and a system repair disk separate. * Budget-conscious buyers who want reliable storage without overspending: the per-unit cost is reasonable for a brand-name 256GB drive, and Japanese domestic support adds peace of mind. However, this drive is not suitable for high-intensity workloads such as video editing, large database operations, or running virtual machines daily. Its sequential write speed is sufficient for typical file copies but not for sustained heavy writes. Also, it lacks USB-C and hardware encryption.
Product Disclosure (Amazon)
- Manufacturer: アイ・オー・データ
- Seller: Amazon.co.jp
- Fulfilled by: Amazon.co.jp
- ASIN: B0H8DR296F
- Note: This article covers a manufacturer-made product based on Amazon listing details.
