This article covers バッファロー 4TB 外付けHDD TOSHIBA Canvio Desktop ブラック.

Overview

The BUFFALO HD-TDA4U3-B external HDD is a 4TB desktop drive based on the Toshiba Canvio Desktop platform. It connects via USB-A and is designed for both PC data backup and TV recording. The unit is finished in black and weighs approximately 1.16 kg, making it a compact addition to any desk setup. With a capacity of 4TB, it suits daily storage needs from document archives to media libraries. This product is positioned as an affordable, reliable external storage solution for home users. Buffalo bundles it as a TV/PC dual-use drive, so it works out of the box without driver installation. Windows, macOS, and compatible TV recorders can all access it via a single USB cable.

Compatibility Guide

Operating Systems: Windows 11/10/8.1, macOS (formatted exFAT/FAT32 after reformat). TV compatibility: select Toshiba REGZA and Buffalo-recommended models. Interface: USB 3.0 (backward compatible with USB 2.0/1.1). Requires a USB Type-A port on the host. Form factor: 3.5-inch desktop external drive. Requires AC power adapter (included). File System: Preformatted NTFS; can be reformatted to exFAT for TV/macOS use. * No special drivers needed; plug-and-play operation.

Product Info

Model: HD-TDA4U3-B Capacity: 4TB (approx. 3.63TB usable) Interface: USB 3.0 (5Gbps) Rotation: 5400 RPM Cache: 64 MB Dimensions: 114 x 180 x 37 mm (WxDxH) Weight: 1.16 kg Power: AC adapter (100-240V) Warranty: 1 year (manufacturer) Availability: Major retailers and online stores in Japan * Market positioning: Entry to mid-range large-capacity external HDD. Priced around ¥18,000–¥20,000, it offers excellent cost per terabyte for bulk storage.

Best Use Cases

TV recording: Directly connect to a compatible TV (REGZA, etc.) for scheduled recording and time-shift viewing. Ideal for cord-cutters who need extra storage. PC backup: Use with Windows File History or third-party backup software to safeguard documents, photos, and videos. 4TB provides ample space for multiple backup generations. Budget secondary storage: Add to a PC or laptop via USB for storing media collections, game libraries (read-only), or archived projects. Significant cost savings over SSDs for cold storage.

Things to Consider

This drive requires AC power – not suitable for portable use. If you need on-the-go storage, consider a 2.5-inch USB-powered HDD or SSD. Transfer speeds are typical for a 5400 RPM HDD (~100–150 MB/s). It is not recommended as a primary OS drive or for workloads with many small random I/Os. Check TV compatibility lists before purchase. Some TV models may not support this specific Buffalo/Toshiba drive. Operational noise (clicking, vibration) is present. For quiet environments, an SSD or a low-noise HDD model would be better. Competing models from Seagate (Backup Plus Hub) and Western Digital (My Book) offer similar capacities and features with varying warranty durations. Compare if additional software features or extended warranty matter to you.

Product Disclosure (Amazon)

  • Manufacturer: バッファロー
  • Seller: アバゲイネットオンライン
  • Fulfilled by: Amazon
  • ASIN: B0918WYL3L
  • Note: This article covers a manufacturer-made product based on Amazon listing details.