HGST
HGST 0A78603 Travelstar Z5K320 320GB 5400 RPM 8MB Cache SATA 3.0Gb/s 2.5" laptop hard drive
A 2.5 inch laptop hard drive with 320GB capacity, 5400 RPM speed, 8MB cache and a SATA 3.0Gb/s interface
- PackagingBare Drive
- InterfaceSATA 3.0Gb/s
- Capacity320GB
- Cache8MB
- Average Seek Time13ms
- Average Latency5.5ms
- 320 GB capacity stores up to 80 hours of HD video
- 5400 RPM spindle with 8 MB cache delivers 994 Mb/s media transfer rate
- 7 mm z-height fits slim 2.5 inch laptop bays
- 6 W read/write power and 0.55 W idle extend battery life
- 400 G operating shock and TrueTrack technology protect data during bumps
Capacity and form factor
The HGST Travelstar Z5K320 is a 320GB 2.5-inch internal hard drive designed for laptop upgrades or replacements. It operates at 5400 RPM with an 8MB cache and connects through a SATA 3.0Gb/s interface.
Upgrade considerations
This drive replaces older 2.5-inch SATA laptop drives with lower capacity or slower performance. The jump is worth it when you need more space for media or applications and your system supports the 9.5mm z-height.
Installation notes
The bare drive fits standard 2.5-inch drive bays using the SATA data and power connectors. No special tools are required beyond a small screwdriver. Ensure the laptop chassis accepts a 9.5mm drive height, as some ultra-thin models only accept 7mm drives.
Highlights
- 320 GB capacity stores up to 80 hours of HD video
- 5400 RPM spindle with 8 MB cache delivers 994 Mb/s media transfer rate
- 7 mm z-height fits slim 2.5 inch laptop bays
- 6 W read/write power and 0.55 W idle extend battery life
- 400 G operating shock and TrueTrack technology protect data during bumps
Specifications
| Brand | HGST |
|---|---|
| Series | Travelstar Z5K320 |
| Model | HTS543232A7A384 (Part#: 0A78603) |
| Packaging | Bare Drive |
| Interface | SATA 3.0Gb/s |
| Capacity | 320GB |
| Cache | 8MB |
| Average Seek Time | 13ms |
| Average Latency | 5.5ms |
| RPM | 5400 RPM |
| Features | New 7mm z-height for greater design flexability Up to 320GB storage - Up to 80 hours of high-definition video, 320 hours of standard video, 114 movies, 80,000 4-min songs or 160 games 1.6W read/write power - Low energy use and long battery life for 0.55W low power idle - more "unplugged" notebook time 400G operating shock - Robust design to help protect against bumps and 1000G non-operating shock - rough handling TrueTrack technology - Prevents slow performance or errors in high shock or vibration environments Improved acoustics - Quieter for a richer audio-listening experience for m |
| Form Factor | 2.5" |
| Height (maximum) | 9.5mm |
| Width (maximum) | 69.75mm |
| Length (maximum) | 100.3mm |
| Shipping weight | 0.09 kg |
| Package size | 102 × 76 × 6 mm |
Questions about this item
Will the 9.5 mm height fit my laptop's 2.5 inch bay?
The drive is a 2.5 inch form factor with a maximum height of 9.5 mm, matching the standard laptop bay size.
Does the SATA 3.0 Gb/s connector need any special alignment during installation?
The SATA data and power connectors are keyed; insert them straight until they click — forcing them at an angle bends the pins.
How often should I check the drive's 400 G operating shock rating?
The 400 G operating shock rating is a design specification, not a maintenance interval; run SMART checks periodically instead.
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.
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