EXSYS EX-3680 2-Port RS232 PCIe Serial Adapter Card with 15KV ESD Protection

In industrial automation environments, legacy equipment often relies on RS232 serial connections that modern computers lack. The EXSYS EX-3680 solves this by adding two high-performance RS232 ports through a PCI Express x1 slot. Install it in a point-of-sale terminal, a CNC machine controller, or a laboratory instrument PC to connect barcode scanners, receipt printers, modems, or sensors without compatibility headaches.

Key specifications

• Host interface: PCI Express x1 (PCIe 1.1, backward compatible)
• Output interface: 2x RS232 serial ports (DB9 male)
• Chipset: ASIX AX99100
• Max baud rate: 921.6 Kbps per port
• FIFO buffer: 256-byte transmit/receive per port
• ESD protection: 15KV on all signal lines
• Flow control: Hardware (RTS/CTS) and software (XON/XOFF)
• Data bits: 5, 6, 7, 8; Stop bits: 1, 1.5, 2; Parity: Even, Odd, None, Mark, Space
• Low profile bracket included for slim cases
• OS support: Windows XP/Vista/7/8/10/11, Windows Server, Linux kernel 2.6.x and later

Why choose it

The EX-3680 stands out with its robust 15KV ESD protection, safeguarding your system against electrostatic discharge in harsh industrial settings. The ASIX AX99100 chipset ensures reliable, low-latency communication, while the 256-byte FIFO buffers prevent data loss under heavy loads. The included low-profile bracket makes it versatile for both standard and slim desktop chassis.

Ideal use cases

• Connecting legacy serial devices to modern PCs in industrial automation
• Point-of-sale systems requiring multiple RS232 peripherals
• Laboratory equipment and scientific instruments with serial interfaces
• Building management and access control systems
• Legacy server and networking equipment management

Good to know

The card is compliant with CE, FCC, and RoHS standards, ensuring quality and environmental responsibility. It supports a wide range of operating systems, including the latest Windows 11 and Linux distributions, making it a future-proof choice. Installation is straightforward: simply insert the card into an available PCIe x1 slot and install the appropriate driver from the EXSYS website.