Seagate
Seagate ST9250421ASG 250GB 7200 RPM SATA 3.0Gb/s 2.5" laptop hard drive
A 250 GB 2.5″ laptop hard drive spinning at 7200 RPM over SATA 3.0Gb/s with free-fall protection
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity250GB
- RPM7200 RPM
- FeaturesFree Fall Protection
- Form Factor2.5"
- 7200 RPM spindle delivers faster data access
- 250 GB capacity stores ample documents and media
- 16 MB buffer smooths read and write bursts
- Free Fall Protection guards data against drops
- 5 mm height fits standard 2.5" laptop bays
250 GB 2.5″ SATA laptop drive
This 250 GB Seagate ST9250421ASG is a 2.5″ internal hard drive built for notebooks that accept a 9.5 mm SATA 3.0 Gb/s device. It spins at 7200 RPM and includes a 16 MB buffer for everyday workloads. The refurbished unit ships as a bare drive without cables or brackets.
Free Fall Protection for mobile use
The G‑Force Protection feature parks the heads when sudden motion is detected, reducing the risk of damage from drops or bumps. This hardware safeguard operates automatically and requires no extra software or configuration. It helps preserve data during typical laptop transport.
9.5 mm height fits standard bays
At 9.5 mm thick, 69.75 mm wide and 100.3 mm long, the drive matches the common 2.5″ notebook form factor and connects via a standard SATA data and power connector. The bare‑drive packaging means you reuse existing mounting hardware in the target system. A 90 day limited warranty covers the refurbished unit.
Highlights
- 7200 RPM spindle delivers faster data access
- 250 GB capacity stores ample documents and media
- 16 MB buffer smooths read and write bursts
- Free Fall Protection guards data against drops
- 5 mm height fits standard 2.5" laptop bays
Specifications
| Brand | Seagate |
|---|---|
| Model | ST9250421ASG |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 250GB |
| RPM | 7200 RPM |
| Features | Free Fall Protection |
| Form Factor | 2.5" |
| Height (maximum) | 9.5mm |
| Width (maximum) | 69.75mm |
| Length (maximum) | 100.3mm |
| Shipping weight | 0.11 kg |
| Package size | 102 × 70 × 13 mm |
Questions about this item
Will the 16 MB buffer need any maintenance or replacement over time?
No, the 16 MB buffer is a solid-state cache on the controller board with no moving parts and requires no servicing.
What limit appears first during sustained transfers on the SATA 3.0 Gb/s link?
The 300 MB/s interface ceiling is reached before the 7200 RPM platters can sustain higher throughput.
How much noise, heat or power should I expect when the drive runs all day in a laptop?
The 2.5 inch, 9.5 mm form factor keeps power draw low and heat modest; the G-Force protection parks heads instantly if vibration spikes.
New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
