SUNIX SER5437PHL, PCI Express serial communication board, allows users to add or expand two RS-232 ports on PC-based system. This board supports +5 or +12VDC of power from each serial port via COM 1st and 9th pin output. It's convenient for users connecting serial devices without addition external power supply.

Features:
- Expands 2 independent RS-232 serial ports with communication speeds up to 921.6Kbps.
- High speed SUN1989 16C950 compatible UART controller on-board.
- Designed to meet PCI Express Base Specification Revision 1.1.
- Supports x1, x2, x4, x8, x16 (lane) PCI Express Bus connector keys
- Provides RS-232 serial ports with +5 or +12 VDC power output via COM 1st or 9th pin.
- On-chip hardware auto flow control to guarantee no data loss.
- Built-in ± 15KV ESD protection for all serial signals meets IEC1000-4-2 standard.
- Plug-n-Play, I/O address and IRQ assigned by BIOS.
- Low profile bracket design idea for slim or portable PC.
- Certified by CE, FCC, RoHS, and Microsoft WHQL approval.
- Support Microsoft Windows, Linux, and DOS.

Specifications:
Product Description: 2-port RS-232 High Speed PCI Express Low Profile Serial Board with Power Output
Interface: RS-232
Controller: SUNIX SUN1989 (16C950 UART Compatible)
Bus: PCI Express one lane (x1)
No. of Ports: 2-port
PCB connector: DB44 Female

Driver Support:
Microsoft Client: Windows XP/Vista/7 (X86/X64)
Microsoft Server: Windows 2000/2003/2008 (X86/X64)