SUNIX CardBus series meet the need of the portable market where notebooks, desktops, and docking stations could add additional RS-232 serial and IEEE1284 Parallel ports via a PCMCIA Type II 32-bit CardBus slot. Each of RS-232 serial ports offers data transfer rates up to 230.4 Kbps with built-in 32-byte FIFO buffer to give you maximum system performance and efficiency. The CardBus are equipped with SUNIX high performance and reliable chipset UL7512EQ. The SUNIX CardBus IO series is the advanced and high efficient solution for commercial and industrial automation applications. Users will benefit from CardBus plug-n-play ease of use, which eliminates the need to open the chassis to add new features. SUNIX MultiIO CardBus series support serial peripherals, such as GPS receivers, serial printers/plotters, barcode scanners, digital cameras, PDAs, Cell Phones and fax/modems. Expands 4/2/1 RS-232 or 1/2 Parallel ports on system Compliant with PCMCIA Type II 32-bit CardBus specification High performance SUNIX UL7512EQ 16C650 compatible UART controller on-board IEEE 1284-1994 Parallel interface compliant supports SPP (Standard Parallel Port) / EPP (Enhanced Parallel Port) ECP (Enhanced Capability Port) / BPP (Bi-direction Parallel Port) On-chip hardware auto flow control to guarantee no data loss Hot-swapping feature allows to attach/detach devices without first powering your computer off Built-in ± 15KV ESD protection for all serial signals Plug-n-Play, I/O address and IRQ assigned by BIOS Certified by CE, FCC, RoHS, and Microsoft WQHL approval Support Microsoft Windows, Linux, and DOS