π Apple II 670 820-0027-01 Synch Printer Interface Vintage Card Working
π Apple II 670 820-0027-01 Synch Printer Interface Vintage Card Working
Apple II Synchronous Serial Interface Card (Apple P/N 670-0027-A)
Rare original Apple interface card pulled from a working Apple II system. Card has been fully inspected, connector edge cleaned, and all ICs checked for proper seating. A great piece for collectors, restorers, or anyone building out a complete early Apple II system.
βΈ»
Condition
β’ Clean board, no corrosion
β’ Edge connector polished for reliable contact
β’ No repaired traces or bodge wires
β’ ICs include Signetics, Fairchild, TI, Apple-marked ROM
β’ AMP 80-47 connector intact
β’ Tested for card recognition and ROM checksum (passes)
This is a vintage original Apple card, not a reproduction.
βΈ»
Features & Technical Notes
β’ Apple part number: 670-0027-A
β’ Supports synchronous serial communications (used historically with mainframes, minicomputers, banking systems, telecom hardware)
β’ Includes factory ROM (copyright Apple Computer Inc. 1979)
β’ Uses standard Apple II expansion slot
β’ Compatible with: Apple II, II+, IIe (for IIgs use 5V logic compatibility guidelines)
βΈ»
What's Included
β’ Apple Synchronous Serial Interface Card (shown)
β’ Anti-static packaging
β’ Professional packing for safe transit
βΈ»
Shipping
Ships from Chicago with care. Board will be wrapped in anti-static material, then double-protected in foam.
βΈ»
Collector Notes
These synchronous cards were produced in relatively low volume and appear far less often than parallel and serial cards. A clean, original example like this is an excellent addition for full-system builds, museum-quality Apple II setups, or period-correct telecom/comms demonstrations.