Description: A close reproduction of the MITS 88-2SIO Rev 0 Serial I/O Board used in the ALTAIR 8800 and other S-100 computers. This board provides one or two serial ports using the 6850 ACIA. Although not an exact replica, this board is functionally equivalent to the original MITS 88-2SIO board. This board uses the same components and documentation as the original. RS-232, TTL, and Current Loop are supported. Most components on the right side of the board are only required if using Current Loop. The 88-2SIO is compatible with a vast amount of Altair software, including CP/M and Microsoft BASIC. This sale is for a bare PC Board. All parts are available and full documentation including assembly manual is readily available on the web. Images show completed board in an ALTAIR 8800c booting CP/M 2.2. This board was produced from scratch using KiCad 7 and an original 88-2SIO as a template. Prototypes were then made to confirm proper operation. I am happy to accept returns if you are not pleased for any reason as long as the board is unassembled. You will need to pay return shipping only.
Price: 35 USD
Location: Chattanooga, Tennessee
End Time: 2025-02-14T22:58:49.000Z
Shipping Cost: 8.99 USD
Product Images
Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: MITS
Compatible Brand: For S100 Systems
Type: Interface Card
Unit Type: Unit
Country/Region of Manufacture: United States
Unit Quantity: 1
