Features:
* Expands 4-port RS-232 COM and 1-port IEEE1284 LPT on system.
* Designed to meet PCI Express Base Specification Revision 1.1.
* High reliability SUNIX SUN1999 16C950 compatible Multi-IO controller on-board.
* Expands four RS-232 serial port with communication speed up to 115.2Kbps.
* On-chip hardware auto flow control to guarantee no data loss.
* Built-in ±2KV ESD protection for all serial signals.
* Support IEEE 1284-1994 parallel port standard
ECP(Enhance Capacity Port) / EPP(Enhance Parallel Port)
SPP(Standard Parallel Port) / BPP(Bi-direction Parallel Port)
* Auto-switching between ECP/EPP/SPP/BPP modes without configuration.
* Plug-n-Play, I/O address and IRQ assigned by system.
* Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
* Support Microsoft Windows, Linux, and DOS.

Specifications:
Interface RS-232 and IEEE1284
Controller SUNIX SUN1999 (16C950 UART Compatible)
Bus PCI Express one lane (x1)
IRQ & IO Assigned by System
Interface 4x RS-232
Interface 1x IEEE1284

Driver Support
Microsoft Client Windows XP/Vista/7 (X86/X64)
Microsoft Server Windows 2000/2003/2008 (X86/X64)
Microsoft Embedded Windows XP Embedded/POS Ready 2009/Embedded System 2009
Linux Linux 2.4.x / 2.6.x
DOS