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Black 1U rack-mount chassis with 16 DB9 ports and power supply

SerialGear

SerialGear USBG-16COM-RM 16 Port Rack Mount USB Converter

SKU CH-7P3M-0WB3P

Adds sixteen RS-232 serial ports via one USB connection with rack-mount and DIN-rail brackets included

  • ColorBlack
  • Changer TypeUSB to DB9 (RS-232)
  • Adds sixteen industrial RS-232 ports via one USB connection
  • Mounts in 19-inch rack or on DIN rail with included kits
  • Full RS-232 modem control plus hardware and software flow control
  • Works on Windows XP through 11, Linux and Mac OS 10.X
  • Built-in 100V~240V supply with SECC metal chassis for durability

Industrial serial expansion

The SerialGear USBG-16COM-RM adds sixteen RS-232 ports through a single USB 1.1 or 2.0 host connection. It targets engineers and integrators who need to link legacy serial equipment such as modems, POS printers, PLCs or data loggers to modern PCs in factory, lab or server-room environments. The 1U metal chassis includes both 19-inch rack ears and DIN rail brackets for flexible mounting.

USB bandwidth and signal limits

All sixteen ports share one upstream USB 1.1 or 2.0 link so aggregate throughput is bounded by that interface rather than by the individual RS-232 lines. Each port supports full modem control signals including TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI and GND with hardware and software flow control. Internal buffers provide 128 byte transmit and 384 byte receive FIFOs per port to smooth bursty traffic.

Replaces multi-port ISA or PCI cards

The adapter replaces older internal multi-port serial cards that occupy expansion slots and require driver management per operating system. Moving to this external USB device simplifies migration when upgrading motherboards or shifting between Windows XP through 11, Linux and Mac OS 10.X hosts. The jump is worthwhile when slot space is scarce, when hot-plug convenience matters or when a single 100-240 V built-in supply is preferred over chassis power.

Highlights

  • Adds sixteen industrial RS-232 ports via one USB connection
  • Mounts in 19-inch rack or on DIN rail with included kits
  • Full RS-232 modem control plus hardware and software flow control
  • Works on Windows XP through 11, Linux and Mac OS 10.X
  • Built-in 100V~240V supply with SECC metal chassis for durability

Specifications

BrandSerialGear
ModelUSBG-16COM-RM
Part NumberUSBG-16COM-RM
ColorBlack
Changer TypeUSB to DB9 (RS-232)

Questions about this item

How many serial ports does the USBG-16COM-RM provide through one USB connection?

The adapter adds sixteen RS-232 ports via a single USB link, each with full modem control signals and hardware or software flow control.

What practical throughput can I expect from the USB 2.0 host connection?

The device works with USB 1.1 and 2.0 hosts; actual serial throughput depends on the 128 byte transmit FIFO and 384 byte receive FIFO per port.

Which physical interface standard do the sixteen ports use?

All sixteen ports are standard DB9 RS-232 connectors supporting TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI and GND signals.

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