1x MME UA8560D - Dual-channel Serial Input/Output Controller - DIP-40 = Z80-SIO

2 x UB855D MME Z80-PIO DIP40 PARALLEL I/O CONTROLLER ARCADE VIDEO RETRO IC

1x MME UA858D - DMA Direct Memory Access Controller - DIP-40 = Z80-DMA / Z80DMA

Vintage US Robotics Modem 0701 56k Serial RS-232+Power Adapter+Cable TESTED

3 x UA855D by MME Z80-PIO DIP40 PARALLEL I/O CONTROLLER ARCADE VIDEO RETRO IC

1x MME 80- DART Dip-40

UA858D MME Z80A-DMA Programmable Peripheral Direct Memory Access Controller IC

AM25LS22PC AMD 8-Bit Serial Parallel Register with Sign Extend IC, DIP-20.