Everex Systems EV-923 Internal Modem ISA Card 1987 Vintage PC RJ11C FCC

Everex Systems EV-923 Internal Modem ISA Card 1987 Vintage PC RJ11C FCC

The Everex Systems EV-923 is a vintage internal modem on a half-height ISA expansion card, manufactured in 1987. It installs into an 8-bit ISA slot in an IBM PC, XT, AT, or compatible desktop computer and provides dial-up telephone connectivity through two RJ11C phone jacks mounted on the card bracket. The board is marked Rev C and carries a Parcorp FCC compliance label along with the Everex Systems FCC Part 68 registration label. The card was made in the USA.

Specifications & What's Included

• Manufacturer: Everex Systems, Inc.
• Model: EV-923
• Revision: Rev C (silkscreened on PCB)
• Interface / Bus: ISA (8-bit), half-height form factor
• Phone Connectors: 2 × RJ11C jacks on bracket (line and phone)
• DIP Switch Block: 4-position DIP switch on bracket for configuration
• FCC Registration Number: E3E5UV-72212-MD-E
• Ringer Equivalence: 0.7B
• Standards: FCC Part 15 Class B; FCC Part 68
• Country of Manufacture: United States
• Year: 1987
• Included: Card only — no software, drivers, or EV-923 is an internal dial-up modem designed for IBM PC/XT/AT-compatible desktop computers of the mid-to-late 1980s. Cards like this were used to connect personal computers to telephone lines for dial-up data communication — enabling bulletin board system (BBS) access, early online services, file transfer, and remote terminal sessions at speeds typical of late-1980s modem technology. Everex Systems was a prominent PC peripheral and clone maker of that era, and the EV-923 was representative of the integrated internal modem cards that competed with external serial-port modems of the time. Today these cards are primarily of interest to vintage PC enthusiasts, collectors restoring period-correct IBM PC/XT/AT systems, and hobbyists running original DOS-era BBS or communication software on hardware of the same generation.
  Condition: Used
  This Everex Systems EV-923 Internal ISA Modem card has been inspected and is in good used condition. The board appears clean with no cracked traces or obvious damage visible. The bracket shows light surface wear and some discoloration consistent with age, and the two RJ11C phone jacks on the bracket are present and intact. The DIP switch block and all major ICs appear undamaged. This is a 1987-era card and shows normal aging for its vintage. Please view our photo set and contact us if you have any questions. Visit Our Store

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