That's not an ICD MIO.. It's a CSS Black Box.. From the picture, it looks like it just has the stock 8k of SRAM on it.. If it had 64k (via Bob's upgrade instructions) There'ed be 2 chips Piggybacked where the SRAM is.. That boar dis a SCSI interface, Paralell printer port, 6551 UART driven serial port, and has that ability to control Industry standard (PC style) floppy drives if you buy the floppyboard expansion (which is no longer available from CSS).
It appears to be in excellent condition. As far as what it's worth, $200.00 would be a minimum, low-ball figure..