Add to Cart Quick view Compaq 136521-001 386 SX System Board Motherboard with VGA PS/2 Serial and DB25 Compaq Was: $65.00 Was: $125.00 Upgrade your computing experience with the Compaq 136521-001 386 SX System Board Motherboard. This reliable and high-quality motherboard features VGA, PS/2, Serial, and DB25 compatibility, providing... 15020 SKU: 15020 Weight: 4.00 LBS