Lenovo 4XB7A77447 ST50 V2 3.5 4TB 7.2K 6GB NHS HDD

Lenovo 4XB7A77447 ST50 V2 3.5-Inch 4TB 7.2K NHS Hard Drive

Overview

The Lenovo 4XB7A77447 is a 4TB, 7,200 RPM 3.5-inch non-hot-swap (NHS) hard drive engineered for deployment in Lenovo ThinkSystem ST50 V2 tower servers. At 1.50 lb and 4.60 x 4.60 x 1.20 inches, this drive slots into the ST50 V2's fixed storage bays — the right pick when your workload is straightforward primary or secondary storage and you don't need the added cost of a hot-swap backplane. For environments running network video recorders or file-based workloads off a tower server, pairing a drive that's validated for the platform eliminates the compatibility guesswork that comes with grey-market alternatives.

Key Features

• 4TB Capacity: Provides enough raw storage for weeks of continuous surveillance footage or large file repositories on a single spindle — meaningful when you're budgeting per-bay rather than deploying a multi-drive array.
• 7,200 RPM Spindle Speed: Higher rotational speed versus 5,400 RPM nearline drives means lower average seek latency and better sustained throughput for write-intensive tasks like continuous video recording or frequent database transactions.
• 3.5-Inch Form Factor: Sized for the ST50 V2's desktop tower bays. Do not attempt to fit this in a 2.5-inch or SFF chassis without a carrier adapter — the physical envelope won't align.
• Non-Hot-Swap (NHS) Design: NHS drives cost less than hot-swap equivalents and are the correct choice for the ST50 V2's fixed-bay configuration. If your server stays powered during maintenance windows, confirm your maintenance procedures allow for a planned shutdown before swapping this drive.
• Server/Workstation-Validated Component: Validated as a component for the Lenovo ST50 V2 platform, which matters for firmware compatibility and system-level diagnostics. Using non-validated drives can suppress SMART reporting in Lenovo's XClarity toolset.
• Factory-New, Genuine Drive: Sourced as a factory-new Lenovo-qualified component — no refurbished or grey-market units. For server storage deployments where drive health history is unknown, starting with new stock is the only way to establish a clean SMART baseline.

Integration and Compatibility

The 4XB7A77447 is designed specifically as a compatible storage option for the Lenovo ThinkSystem ST50 V2 tower server. If you are deploying the ST50 V2 as a local NVR host or a small-footprint file server in a branch or edge location, this drive is the straightforward validated choice. Before installing, confirm your ST50 V2's storage bay count and whether any bays are already occupied — the NHS configuration means the server must be powered down before drive installation or removal. For builds requiring redundancy, plan your RAID configuration at the controller level; the drive itself is a single-spindle unit with no onboard redundancy features. Buyers integrating this into a larger storage architecture alongside SSDs should note that 7.2K HDDs work best as bulk capacity tiers rather than OS or application boot drives.

Frequently Asked Questions

Q: What server is the Lenovo 4XB7A77447 designed for?

A: The 4XB7A77447 is validated as a storage component for the Lenovo ThinkSystem ST50 V2 tower server. It is a 3.5-inch non-hot-swap drive intended for the ST50 V2's fixed storage bays.

Q: Is the 4XB7A77447 a hot-swap drive?

A: No. The NHS designation means this is a non-hot-swap drive. The server must be powered down before installing or removing this drive. If you need hot-swap capability, you'll need a different drive and a server with a hot-swap backplane.

Q: What is the capacity and speed of the 4XB7A77447?

A: The drive provides 4TB of storage at 7,200 RPM spindle speed in a 3.5-inch form factor, making it suitable for continuous-write workloads such as surveillance recording or file storage.

Q: Can I use this drive in a non-Lenovo server?

A: The 4XB7A77447 is qualified and validated for the Lenovo ST50 V2 platform. While the physical drive may function in other servers, Lenovo's system-level diagnostics and XClarity management tools may not report drive health correctly unless a Lenovo-qualified drive is installed. Using it outside the validated platform is at your own risk.

Q: What does the drive weigh and what are its dimensions?

A: The 4XB7A77447 weighs 1.50 lb and measures 4.60 x 4.60 x 1.20 inches (L x W x H), consistent with a standard 3.5-inch HDD form factor.