Seagate
Seagate ST940818AM 40GB 5400 RPM 8MB Cache PATA 2.5" laptop hard drive
40 GB PATA laptop drive built for extreme temperatures, vibration and shock
- PackagingBare Drive
- InterfacePATA
- Capacity40GB
- Cache8MB
- Average Latency5.6ms
- RPM5400 RPM
- Rugged EE25.2 Series handles extreme temperatures and vibration
- 40GB capacity stores essential data for embedded applications
- 5400 RPM spindle speed with 8MB cache provides steady throughput
- 5-inch form factor fits standard laptop and industrial drive bays
- PATA interface connects directly to legacy motherboard controllers
Rugged PATA laptop drive
The Seagate ST940818AM is a 40GB 2.5-inch internal hard drive built for rugged environments. It uses a PATA interface and runs at 5400 RPM with an 8MB cache. RunOn Technology enables operation in extreme temperatures and high vibration or shock conditions. This new bare drive suits industrial, automotive and defence applications.
Fit for harsh conditions, not for modern laptops
Engineers maintaining legacy industrial control systems, military equipment or ruggedised laptops will find the correct interface and form factor here. Builders working on current consumer laptops should look elsewhere because those machines no longer support PATA connections. The drive also does not suit users who need more storage capacity than 40GB.
PATA interface decides compatibility
The single specification that determines whether this is the right part is the PATA interface. Only systems with a native PATA controller can install this drive. Verify the host interface before purchase.
Highlights
- Rugged EE25.2 Series handles extreme temperatures and vibration
- 40GB capacity stores essential data for embedded applications
- 5400 RPM spindle speed with 8MB cache provides steady throughput
- 5-inch form factor fits standard laptop and industrial drive bays
- PATA interface connects directly to legacy motherboard controllers
Specifications
| Brand | Seagate |
|---|---|
| Series | EE25.2 Series |
| Model | ST940818AM |
| Packaging | Bare Drive |
| Interface | PATA |
| Capacity | 40GB |
| Cache | 8MB |
| Average Latency | 5.6ms |
| RPM | 5400 RPM |
| Features | Seagate EE25.2 Series 2.5-inch hard drives with RunOn Technology are designed to work in extreme temperatures and tolerate high levels of vibration and shock. Applications: Automotive navitainment systems Aircraft navigation and entertainment Marine Military / Defense Mobile / Outdoor surveillance systems Ruggedized Laptops Industrial control systems Medical equipment |
| Form Factor | 2.5" |
| Shipping weight | 0.23 kg |
| Package size | 152 × 102 × 25 mm |
Questions about this item
How do I install this 2.5" PATA drive and which jumper setting is the step people get wrong?
Fit the drive into the 2.5" bay, connect the 44-pin PATA ribbon and set the jumper to Master or Cable Select; the common mistake is leaving it in the default Slave position.
What maintenance or replacement will this ST940818AM need later?
No routine maintenance is required; replace the drive if SMART reports reallocated sectors or if the 5400 RPM spindle develops bearing noise after extended use.
What limit shows up first on this EE25.2 Series drive under sustained write loads?
The 8 MB cache fills quickly, so sustained throughput drops to the native 5400 RPM media rate once the buffer is exhausted.
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