Western Digital Caviar AC35100 5.1GB 3.5" IDE Hard Drive AC35100-00LC

Western Digital Caviar AC35100 5.1GB 3.5" IDE Hard Drive AC35100-00LC

The Western Digital Caviar AC35100 is a 3.5-inch IDE (ATA/PATA) hard drive with 5.1GB of formatted capacity. Part of Western Digital's long-running Caviar series, this drive uses a standard 40-pin IDE interface and was designed for AT-compatible desktop PCs. The label identifies the full model number as AC35100-00LC and shows the drive was manufactured in Singapore.

Specifications & What's Included

• Manufacturer: Western Digital
• Series: Caviar
• Model: AC35100 (full model: AC35100-00LC)
• Capacity: 5.1 GB (5163.5 MB formatted)
• Interface: IDE / ATA (PATA) — 40-pin connector
• Form Factor: 3.5-inch
• Drive Parameters: 10,672 cylinders / 15 heads / 63 sectors per track
• Power: 5VDC @ 0.58A / 12VDC @ 0.23A
• Country of Manufacture: Singapore
• Certifications: UL (E101559), CSA (LR68850), CE, RWTÜV
• Date Code: C1 22 OCT 97
• Drive only — no cables or mounting hardware included

Applications

The Western Digital Caviar line was one of the most widely used families of desktop hard drives through the 1990s, and the AC35100 dates from the mid-to-late 1990s era of IDE storage. Drives of this type were standard equipment in DOS and early Windows 95/98 desktop PCs that used the ATA/PATA interface. Today, this drive is suited for vintage PC restoration, retro computing builds, and legacy systems that require a period-correct IDE hard drive in the 5GB range — particularly systems running MS-DOS, Windows 95, Windows 98, or early Windows NT. It also sees use in vintage industrial and embedded systems that relied on IDE drives of this era and still need replacement units.