Delock M.2 Card to 2 x Serial RS-232 DB9 with Standard and Low Profile Slot Brackets

The Delock M.2 Card to 2 x Serial RS-232 DB9 is a high-quality expansion card that adds two RS-232 serial ports to your system via an M.2 Key B+M slot. Ideal for industrial applications, POS systems, and legacy device connectivity, this card supports M.2 form factors 2280, 2260, 2242, and 2230. It includes both standard and low profile slot brackets for flexible installation in various PC cases.

Advantages

With the ASIX AX99100 chipset, this card delivers reliable data transfer rates up to 230.4 Kbps per port and a 256-byte FIFO buffer for smooth communication. It supports a wide range of data bits, stop bits, parity, and flow control options, making it compatible with numerous serial devices. The included low profile bracket ensures easy integration into slim or rack-mount systems.

Suitable for

• Adding legacy RS-232 ports to modern PCs without native serial interfaces
• Industrial automation, barcode scanners, and serial printers
• Point-of-sale (POS) systems and cash registers
• Laboratory equipment and measurement devices

Key specifications

• Interface: M.2 Key B+M (PCIe)
• Number of serial ports: 2
• Serial port type: RS-232
• Connector: DB9 male
• Chipset: ASIX AX99100
• Max. data transfer rate: 230.4 Kbps per port
• FIFO buffer: 256 Byte per port
• PCI Express revision: 1.1
• Supported M.2 form factors: 2280, 2260, 2242, 2230
• Slot brackets: Standard and low profile included
• Operating temperature: 0 °C ~ 70 °C
• OS compatibility: Windows 7/8/8.1/10/11 (32/64-bit), Linux Kernel 2.6.x and above

Recommendations

For optimal performance, ensure your motherboard has an available M.2 Key B+M slot. This card is not hot-swappable; install before powering on the system. Compatible with most operating systems, but driver installation may be required for Linux.