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Black Box 4-port USB Hub, RS-232 RS-422 RS-485

  • Black Box
  • 32875274
  • IC1022A
  • Partial Quantity Available
  • Call for next available delivery
Ordering Information
Why install an internal serial adapter to get extra COM ports when using an external USB connection makes more sense? The USB Hubs convert your serial devices to USB-adaptable peripherals without sacrificing serial connection speeds.

The hubs feature high-speed UARTs with 128-byte FIFO transmit buffers and 384-byte FIFO receive buffers. With data rates of up to 921 kbps, these hubs are among the fastest USB serial devices in the industry!

They're also ideal for connecting devices in harsh environments where communication lines may be affected by noise and voltage spikes. Not only do the USB Hubs give you industrial-quality serial connections, but they also support automatic RS-485 data enable/disable and include a DB9 connector that's backward compatible with PCI and ISA RS-422 products.

The USB Hubs connect easily to peripheral serial devices in external plug-and-play fashion. Because they're hot swappable, you can install them without having to power down your PC.