I-O Data PK-A486BL 386 486 Blue Lightning Processor Upgrade CPU BL3 60MHz 486DLC

For sale is a rather rare I-O Data PK-A486BL60 upgrade card for PC-9801DA, RA and PC-98RL series computers. Card features a 486DLC3 at 60MHz. Very specific knowledge of its era is required. In other words, I’m not your tech support (but am helpful!).

eBay