in a single dump) normally, or print page one rotated or inverted. The Serial Pro utilized the MOS Technology 6551 ACIA chip and offered serial baud rates from 50 bit/s to 19,200 bit/s. The lifespan of the card's battery (which retained configuration information and powered the clock chip when the computer was powered off) was touted as 20 years. The card retailed for $139 during the late 1980s. For more on the Serial Pro's clock capabilities, see its entry in Apple II system clocks. Super Serial Card – Apple Computer Apple Computer's Super Serial Card, sometimes abbreviated as "SSC", is the most well known communication card made for the Apple II. Apple called it "Super" because it was able to function as both of Apple's previous cards, the Apple II Communications Card for modem use and the Apple II Serial Interface Card for printer use. A jumper block was used to configure the card for each of the two modes. The card has a maximum speed of 19,200 bit/s and is compatible with both ROM revisions of the Apple II Serial Interface Card. Reliable communications at 9600 bit/s and higher required disabling of interrupts. The card can actually run at 115,200 bit/s as well, using undocumented register settings; but speeds between 19,200 and 115,200 are not possible using this technique. The Super Serial Card was released in 1981 and utilizes the MOS Technology 6551 ACIA serial communications chip. Other serial cards Use this article for: Apple II multi I/O cards 7710 Serial Interface – California Computer Systems 7711 Super Serial Interface – California Computer Systems AIO Interface – SSM or Transend ASIO Interface – SSM or Transend Alphabits – Street Electronics Serial Interface – Apricorn Multicore – Quadram SV-622 Serial Interface – Microtek SeriALL – Practical Peripherals Serial Interface DK 244 – Digitek International Ltd Super Serial Board – MC Price Breakers – Generic Super Serial Card clone Super Serial Imager – Apricorn Super-COMM – Sequential Systems – SSC compatible, built in term program in ROM, supported grappler screen dumps and graphics. Versacard – Prometheus Products Inc. MasterCard II – Pace electronics.'' 6850 based serial port with a 6522 user port to drive autodial modems. Simple terminal program included in onboard EPROM References Apple II peripherals