- Serial Ports: Easy way to add 4 RS-232 serial ports
- USB Compatibility: Fully compliant with USB 1.1; USB 2.0 compatible
- Interface Support: Supports RS-232 serial interface
- Handshake Mode: Supports automatic handshake mode
- Data Transfer Rate: Up to 921.6 Kbps per serial port
- Data Buffers: Dual data buffers for upstream and downstream transfer
- System Resources: No IRQ, DMA, or I/O address resources required
- Hot-Swap Support: Supports hot-swapping and plug-and-play
- ESD Protection: Built-in 16KV ESD protection
- Power Options: Supports both bus power and external power
- Device Compatibility: Works with cellular phones, PDAs, digital cameras, modems, and ISDN terminal adapters