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Silver 3.5 inch bare hard drive with IDE connector

Seagate Refurbished

Seagate ST380012ACE U Series 9 80GB 1MB Cache IDE Ultra ATA100 3.5" internal hard drive

SKU CH-M8F2-KAC2K MPN ST380012ACE

Refurbished 80 GB 3.5-inch IDE Ultra ATA100 desktop hard drive with 1 MB cache and 7200 RPM spindle speed

  • Total capacity80 GB
  • Interface typeIDE Ultra ATA100 / ATA-6
  • Form factor3.5 in (8.89 cm)
  • Packaging typeBare Drive
  • Cache memory1 MB
  • Average seek time8.5 ms
  • 80 GB capacity stores documents and media
  • 7200 RPM spindle speed speeds data access
  • IDE Ultra ATA100 interface supports 100 MB/s transfers
  • 1 MB cache reduces average latency to 4.16 ms
  • 5 ms average seek time improves read response

Seagate U Series 9 80 GB IDE Drive

This refurbished 3.5-inch internal hard drive delivers 80 GB of storage over an IDE Ultra ATA100 / ATA-6 interface. It spins at 7200 RPM with a 1 MB cache and offers an 8.5 ms average seek time. The bare drive is suited for legacy desktop systems that require a parallel ATA connection.

Ideal for legacy ATA desktop builds

The drive fits older PCs and ATA-RAID arrays that rely on a 40-pin IDE interface and 100 MB/s maximum transfer rate. It will not suit builders who need a Serial ATA connection or higher capacities for modern operating systems. Buyers who want larger storage or faster interfaces should look at a different drive.

IDE Ultra ATA100 interface decides fit

The single specification that determines compatibility is the IDE Ultra ATA100 / ATA-6 interface. Your motherboard or controller must provide a matching 40-pin IDE port to use this drive. Without that interface the drive cannot be installed.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $35.99
Cheaper than about 90% of the 4,938 comparable items (median $107.99).
Total capacity 80 GB
Lower than about 97% of the 2,372 comparable items (median 2 TB).
Price per TB $449.88 per TB
Pricier than about 90% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameSeagate
Product lineU Series 9
Model nameST380012ACE
Total capacity80 GB
Performance
Average seek time8.5 ms
Mean write time9.5 ms
Mean latency4.16 ms
Storage
Cache memory1 MB
Ports & slots
Interface typeIDE Ultra ATA100 / ATA-6
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight0.54 kg
Package size150 × 102 × 25 mm

Questions about this item

How does the 7200 RPM spindle speed affect real-world performance in this drive?

The 7200 RPM rotation reduces average seek time to 8.5 ms and write time to 9.5 ms, giving faster file access and boot speeds than slower desktop drives.

What practical limit does the IDE Ultra ATA100 / ATA-6 interface impose on throughput?

The interface caps burst transfer rates at 100 MB/s, so sustained reads and writes will stay below that ceiling regardless of the drive's internal speed.

Will this 3.5 inch bare drive fit a standard desktop mounting bay without extra brackets?

Yes, the 3.5 inch form factor matches standard desktop drive bays and uses the usual four side or bottom mounting holes.

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