Item Description:Up for sale is a rare vintage 8-bit ISA Multi-I/O controller expansion card manufactured by AOX. This board provides both serial/parallel interface capabilities and an onboard system clock, making it an excellent choice for vintage IBM PC/XT clones and retro-hardware restoration projects.
Technical Specifications & Components:* Manufacturer: AOX
* Part Number: ACIO-CLKIO / 980-1369-00A
* Interface: 8-Bit ISA
* UART Chipset: Western Digital WD8250-DL
Real-Time Clock: National Semiconductor MM58167AN RTC chip with an onboard CR2032 coin-cell battery holder.
* External Bracket Ports:
* 1x DB-9 Male Serial Port (COM)
* 1x DB-25 Female Parallel Port (LPT)
* Board Identification Sticker: Labeled "I/OM-P" with Serial Number "3345".Condition:Old Stock I have no way of knowing if it’s used or not. The PCB, gold edge contacts, and metal mounting bracket are in clean physical condition. The onboard battery slot is completely clean with no signs of historical leakage or corrosion. Due to the nature of legacy retro hardware, this item is sold AS-IS, untested. Please review the high-resolution
photos carefully to confirm jumper configurations and system compatibility.