Western Digital WD100 WD100BB-75AUA1 10GB 3.5" IDE Hard Drive Dell 78FGW

Western Digital WD100 WD100BB-75AUA1 10GB 3.5" IDE Hard Drive Dell 78FGW

The Western Digital WD Caviar WD100 is a 3.5-inch Enhanced IDE hard drive with a 10GB capacity. Built around the widely used WD Caviar platform, this drive uses the ATA/Enhanced IDE interface and was manufactured in December 2000. The Dell part number 78FGW (DP/N 078FGW) identifies this as a factory-configured drive supplied with Dell desktops and workstations of that era.

Specifications & What's Included

• Brand: Western Digital
• Drive Series: WD Caviar
• Model: WD100 (WD100BB-75AUA1)
• Dell Part Number: 78FGW / DP/N 078FGW
• Capacity: 10 GB
• Interface: Enhanced IDE (EIDE / ATA)
• Form Factor: 3.5-inch
• LBA Sectors: 19,541,088
• Power: 5VDC @ 0.63A, 12VDC @ 0.35A
• DCM Code: HRCHEVHH
• Hardware Revision: Rev A00
• Date of Manufacture: December 2000
• Country of Manufacture: Malaysia
• Connectors: 40-pin IDE data, 4-pin Molex power
• Drive only — no cables or mounting hardware included

Applications

The WD Caviar line was among the most widely deployed desktop hard drives of the late 1990s and early 2000s, appearing in Dell, HP, Compaq, and custom-built PCs of that generation. The Enhanced IDE (EIDE/ATA) interface was the standard internal storage connection for desktop systems before SATA became dominant in the mid-2000s. At 10GB, this drive is well-suited for retro PC builds, vintage system restoration, period-correct Dell desktop repairs, and retrocomputing projects requiring a correct-era ATA drive. It is also a reliable choice for legacy industrial systems, CNC machines, or embedded PCs that require a small-capacity IDE drive and cannot use modern SATA replacements.