Compaq CDR-8435 127434-205 32x IDE CD-ROM Drive 5.25 Half-Height Internal ATA

Compaq CDR-8435 127434-205 32x IDE CD-ROM Drive 5.25 Half-Height Internal ATA

The Compaq CDR-8435 is a 32x internal IDE CD-ROM drive in a standard 5.25" half-height form factor, identified by Compaq part number 127434-205. It uses a standard 40-pin ATA (IDE) data interface and 4-pin Molex power connector, making it compatible with a wide range of desktop PC systems that include a 5.25" drive bay. This unit was manufactured in November 1999.

Specifications & What's Included

• Model: CDR-8435
• Compaq Part Number: 127434-205
• Read Speed: 32x CD-ROM
• Interface: IDE / ATA (40-pin connector)
• Form Factor: 5.25" Half-Height internal drive
• Power: 4-pin Molex connector (+5V / +12V DC)
• Type Code: BVCG
• Hardware Revision: A0
• Firmware Revision: 0013
• Manufactured: November 1999
• Country of Manufacture: Malaysia
• Certifications: FCC Class B, UL, TÜV, CE, CSA (SR)
• Drive only — no cables or mounting hardware included

Applications

The CDR-8435 is a late-1990s internal IDE CD-ROM drive typical of the era when ATAPI (ATA Packet Interface) optical drives were the standard in desktop PCs. Drives like this were factory-installed in Compaq Deskpro, Presario, and Proliant desktop systems of the late 1990s and early 2000s, as well as used in clone PCs with any standard 5.25" half-height drive bay. The 32x read speed places it in the mainstream performance tier of its generation, before CD-RW and then DVD-ROM drives began to replace read-only units in new PC builds. Today, these drives are sought for maintaining vintage Compaq desktops, older industrial PCs, and legacy systems that still rely on IDE optical drives — particularly machines that require an original Compaq-branded unit or a period-correct replacement.