SINCE 1986, Sealevel Systems has manufactured quality Serial and Digital I/O products to serve our customers' interface requirements. Whether you need RS-232, RS-422, or RS-485 connectivity or robust digital input/output capabilities, Sealevel has a solution. High reliability backed by a Lifetime Warranty and customer support second to none are standard with all Sealevel I/O products.

Sealevel CompactFlash products offer a convenient way to add RS-232, RS-422, or RS-485 communications to PDAs, tablets, and other portable devices not normally equipped with serial ports. Driver software is included for popular operating systems including Windows 2000 and XP, and they are automatically recognized in hardware running Windows CE and PocketPC. The cards are compatible with 3.3V and 5V devices and can operate at speeds up to 921.6K bps.