Buffalo OP-HD4.0N 4 TB Hard Drive — 3.5" Internal SATA (SATA/600)

The Buffalo OP-HD4.0N 4 TB Hard Drive is a high-capacity, reliable storage solution designed to meet the needs of both professionals and home users. This 3.5" internal hard drive uses a SATA (SATA/600) interface to deliver solid performance for daily backups, media libraries, and demanding workloads. Built for dependable operation in desktop PCs and compatible enclosures, the OP-HD4.0N is an ideal choice for expanding storage without sacrificing speed or stability. Whether you’re building a robust backup strategy, streaming media, or archiving important files, this drive provides the capacity and reliability you require with Buffalo’s engineering backing.

• Massive 4 TB capacity to store thousands of photos, music tracks, high-definition videos, documents, applications, and large project files—perfect for accelerating backups and maintaining a well-organized digital library.
• Standard 3.5-inch internal form factor for straightforward installation in most desktop towers and compatible drive enclosures, making upgrade or expansion quick and simple.
• SATA 6Gb/s (SATA/600) interface delivers efficient data transfer, faster file access, and responsive performance for everyday computing tasks and multimedia workloads.
• Designed for reliability with Buffalo engineering built to support consistent operation in professional and personal environments, helping you protect important data over time.
• Energy-conscious and quiet operation to minimize heat and noise in a busy workspace, enabling comfortable, long-duration use without disruption.

Technical Details of Buffalo OP-HD4.0N 4 TB Hard Drive

• Capacity: 4 TB
• Form Factor: 3.5-inch internal drive
• Interface: SATA 6Gb/s (SATA/600)
• Internal drive type: 3.5" internal HDD designed for desktops and compatible enclosure use
• Recommended use: Backups, media storage, and general-purpose data storage in desktop environments

How to install Buffalo OP-HD4.0N

• Power down your computer and unplug it from the power source before opening the case.
• Open the chassis and locate an available 3.5-inch drive bay suitable for a standard internal hard drive.
• Connect the SATA data cable from the motherboard to the drive’s SATA port, then attach a power cable from the power supply to the drive.
• Secure the drive in the bay with screws or a mounting tray, ensuring proper alignment with the connectors.
• Close the case, reconnect power, and boot the system. Use your operating system’s disk management tool to initialize, partition, and format the new drive as needed (NTFS for Windows, HFS+ or APFS for macOS, or exFAT for cross-platform use).

Frequently asked questions

• What capacity does the Buffalo OP-HD4.0N offer? The drive provides 4 TB of storage capacity, suitable for large media libraries, backups, and data archives.
• Which interface does it use? It uses a SATA 6Gb/s (SATA/600) interface for fast data transfers and broad compatibility with modern motherboards and storage controllers.
• Is this drive suitable for NAS devices? This is an internal desktop drive designed for desktops and compatible enclosures. For NAS usage, verify compatibility with your NAS enclosure or select a drive specifically rated for NAS workloads and 24/7 operation.
• Can I use this drive with Windows and macOS? Yes. Windows can format the drive as NTFS, while macOS can format it as APFS, HFS+, or exFAT depending on your workflow. If you plan to share across systems, exFAT is a convenient cross-platform format after initial setup.
• Is there a warranty? Warranty details vary by region and retailer. Check Buffalo’s official support resources or your seller for the exact terms and duration applicable to your purchase.