Promise Technology Ultra100 PCI IDE Controller Card 9952-10 Rev B5 ATA100

Promise Technology Ultra100 PCI IDE Controller Card 9952-10 Rev B5 ATA100

The Promise Technology Ultra100 is a PCI-bus IDE controller card that adds two additional ATA/100 IDE channels to a desktop PC via a standard PCI slot. It carries board assembly number 9952-10 Rev B5 and ships with a Maxtor-branded BIOS ROM (firmware V2.01 B27). The card allows connection of up to four ATA/IDE devices — hard drives, optical drives, or tape drives — across its two independent channels, freeing up the motherboard's onboard IDE ports or extending storage capacity beyond what the motherboard alone supports.

Specifications & What's Included

• Brand: Promise Technology, Inc.
• Model: Ultra100
• Assembly / Part Number: ASSY 9952-10 REV B5
• BIOS Chip: Maxtor-branded, Ultra100 V2.01 B27
• Bus Interface: PCI (32-bit)
• Drive Interface: Ultra ATA/100 (ATA-6), backward compatible with ATA/66, ATA/33, and standard IDE
• Max Data Transfer Rate: 100 MB/s
• IDE Channels: 2 (IDE1 and IDE2, labeled on PCB)
• Max Devices Supported: 4 (2 per channel, master/slave)
• Form Factor: Standard-height PCI add-in card with full-height bracket installed
• Certifications: FCC, CE (markings visible on rear of board)
• Country of Manufacture: Taiwan (per PCB silkscreen)
• Included: Card only — no software, cables, or manual Promise Ultra100 was a popular PCI IDE controller from the late 1990s and early 2000s, designed for desktop PCs running Windows 98, Windows ME, Windows 2000, and early Windows XP. It was widely used to add ATA/100 support to motherboards with only ATA/33 or ATA/66 onboard controllers, letting users take full advantage of faster ATA/100 hard drives without upgrading the entire motherboard. The Ultra100 was also commonly used to expand beyond the standard two onboard IDE channels — useful in systems running multiple hard drives alongside CD-ROM and CD-RW drives. Today these cards are sought by enthusiasts maintaining legacy Windows 9x and early 2000s systems, as well as builders of retro PCs who need additional IDE device support. Promise Technology was one of the leading IDE controller vendors of that era, and the Ultra100 was one of their best-known consumer-grade cards.
  Condition: Used
  This Promise Technology Ultra100 PCI IDE controller card (Assy 9952-10 Rev B5) has been inspected and is in good used condition. The card shows normal handling wear consistent with prior use but is free of visible damage. The PCI edge connector, IDE headers, and BIOS chip all appear intact and undamaged. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function. Visit Our Store

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