Miami, Florida-based Equinox Systems Inc’s Megaport LD series of multi-user expansion boards, including drivers, are now available for AT, EISA, PS/2 and other Micro Channel Architecture systems running Unix or Xenix. The 12- and 24-port are claimed to be able to connect RS-232 terminals to Unix hosts located up to 4,000 feet away – most others, it claims, can only handle distances of several hundred feet. Further distances can be achieved with the addition of one of its LDA-232 line drivers. Megaport LD boards for AT and EISA bus systems are $1,200 for the 12-port version, or $2,000 for the 24-port card. The Megaport/2 LD line for PS/2 and Micro Channel systems cost $1,400 and $2,200 for 12- and 24-port boards respectively. A combination of LD and standard distance modem control port boards – Megaport-12LD + 12CS – are also available at $2,000 for AT and EISA buses, or $2,200 for Micro Channel systems. Support for Interactive Systems Corp’s Unix and IBM’s AIX will be added later this year.