1. [EASY INSTALLATION] Simply insert the card into the PCI Express slot on the motherboard and install the drivers for quick setup.
2. [DUAL FUNCTIONALITY] Enjoy the convenience of two RS232 BD9 serial ports on your PC with the expansion card.
3. [STURDY MATERIAL] Made of durable PCB material with ASIX AX99100 chip for reliable and long-lasting performance.
4. [SMOOTH DATA TRANSFER] Supports 256 byte depth FIFO transfers for high-speed and efficient data processing.
5. [WIDE APPLICATIONS] Ideal for POS systems, industrial devices, scanners, security systems, and more for versatile connectivity.

Spec:
Item Type: 2 Port PCI Express RS 232 DB9 Serial Port Card
Material: PCB
Chip: For ASIX AX99100
Bus Interface: PCIE X1 (Compatible with X1, X4, X8, X16)
Expansion Interface: 2xRS 232

How to Use:
Take out the product and use it

packing list:
1 x2 Port PCI Express RS 232 DB9 Serial Port Card

Note:
1. It is important to ensure that the user's PC has an available PCIE slot.
2. Please install the correct driver from the Mini CD of your desktop PC.