Expand legacy-free industrial PCs, edge computers or digital-signage players into reliable serial networks with the Neuftech IIO-COMB Series. The card plugs into any M.2 2230 A- or E-Key slot that exposes PCIe ×1 and instantly provides two software-selectable RS-232 or RS-485 ports. Engineered for 24-hour factories, outdoor cabinets and in-vehicle gateways, every unit operates from –40 °C to +85 °C, survives ±15 kV ESD and delivers 2.5 kV isolation on the RS-485 variant. A 30 cm, EMI-shielded flat cable terminates in standard DB9 males, so you can mount the ports on a blank PCIe bracket or panel cut-out. Drivers for Windows 10/11 and Linux (3.8+) are WHQL & Ubuntu LTS certified, eliminating compatibility guess-work. Whether you need long-range multi-drop RS-485 for Modbus sensors or hardware-handshaked RS-232 for legacy CNC machines, the IIO-COMB gives you industrial durability in the world’s smallest form factor
Ideal for adding rugged, wide-temp serial ports to industrial PCs, edge gateways, kiosks, and in-vehicle computers that only have an M.2 A/E-Key slot free.
| Specification | Details |
|---|---|
| Form Factor | M.2 2230 A/E-Key (PCIe ×1 signal required) |
| Controller | ASIX AX99100 |
| Serial Ports | 2×RS-232 (3.3 V, 256 kbps) or 2×RS-485 (5 V, 500 kbps, 2.5 kV isolated) |
| ESD Protection | ±15 kV (air & contact) |
| Surge Immunity | 600 W transient voltage suppressor |
| Operating Temperature | –40 °C to +85 °C |
| Relative Humidity | 5 % – 95 % non-condensing |
| Cable Length & Type | 30 cm flat, SH1.0 mm, EMI-shielded, DB9 male ends |
| OS Support | Windows 10/11 (x86/x64), Linux kernel 3.8+, Ubuntu LTS, CentOS, Debian |
| Certifications | CE, FCC Class A, RoHS, WHQL |
| Power Consumption | < 1 W (typical) |






