VINTAGE QUATECH DS-100 REV C TWO PORT RS232 SERIAL ISA EXPANSION CARD RETRO PC

DESCRIPTION:
Up for sale is a vintage Quatech DS-100 Rev C Two-Channel RS-232 Asynchronous Serial Interface ISA adapter card in excellent pre-owned cosmetic condition. This 8-bit/16-bit legacy expansion board is ideal for vintage IBM PC/XT/AT compatibles, retro-computing hobbyists, industrial systems restoration, or processing workstation builds.

Features dual high-quality socketed MX9206 GS / MX16C450-PC UART controllers, onboard 1.8432 MHz crystal oscillator, and four red configuration DIP switch blocks for flexible base address and IRQ mapping. The board features dual integrated DB9 male serial COM ports on the rear bracket.

Cosmetic condition is exceptionally clean. The PCB substrate, traces, and solder joints are pristine with zero corrosion or leakage. Gold-plated edge contacts show minimal insertion wear. Untested electrically; sold as-is. Includes the card only as pictured.

Ships fast within 1 business day via USPS. Thanks for looking!

Buy both cards: send a Best Offer of $50 for quantity 2.