Seagate
Seagate Momentus 5400.4 ST9200827AS 200GB 5400 RPM 8MB SATA 3.0Gb/s 2.5" laptop hard drive
A 2.5 inch SATA laptop hard drive with 200GB capacity, 5400 RPM speed and 8MB cache
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity200GB
- Cache8MB
- Average Latency5.6ms
- RPM5400 RPM
- 200 GB capacity stores large media libraries
- 5400 RPM spindle delivers quiet operation
- 8 MB cache accelerates frequent file access
- SATA 3.0 Gb/s interface enables simple laptop upgrades
- 5 inch form factor fits standard drive bays
Seagate Momentus 5400.4 200GB SATA drive
This Seagate Momentus 5400.4 model ST9200827AS is a 200GB 2.5 inch laptop internal hard drive. It spins at 5400 RPM with an 8MB cache and connects via a SATA 3.0Gb/s interface. The bare drive arrives in OEM packaging and carries a three-year limited warranty.
Ideal for older laptop repairs and basic storage
The drive suits technicians restoring legacy notebooks that require a 2.5 inch SATA mechanism with modest capacity. It is not suited for users who need more storage space or higher throughput for modern operating systems and applications.
SATA 3.0Gb/s interface determines compatibility
The SATA 3.0Gb/s interface is the single specification that decides whether this drive fits the target system. Verify that the laptop or enclosure accepts a 2.5 inch SATA drive before purchase.
Highlights
- 200 GB capacity stores large media libraries
- 5400 RPM spindle delivers quiet operation
- 8 MB cache accelerates frequent file access
- SATA 3.0 Gb/s interface enables simple laptop upgrades
- 5 inch form factor fits standard drive bays
Specifications
| Brand | Seagate |
|---|---|
| Series | Momentus 5400.4 |
| Model | ST9200827AS |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 200GB |
| Cache | 8MB |
| Average Latency | 5.6ms |
| RPM | 5400 RPM |
| Form Factor | 2.5" |
| Shipping weight | 0.09 kg |
| Package size | 133 × 83 × 8 mm |
Questions about this item
Will the 5400 RPM spindle speed keep my laptop responsive for everyday tasks?
At 5400 RPM the average latency is 5.6 ms, which is typical for a 2.5 inch drive and keeps boot times and file loads steady for office work and web browsing.
What does the SATA 3.0 Gb/s interface actually limit on this drive?
The SATA 3.0 Gb/s link caps the burst transfer at 300 MB/s, while sustained reads and writes stay well below that because the 5400 RPM platters and 8 MB cache set the real throughput.
Does the 2.5 inch form factor fit every laptop drive bay?
The drive uses the standard 2.5 inch height for SATA notebook bays, so it slides into any laptop or enclosure designed for a 2.5 inch SATA hard drive.
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.



