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USB-2COM-BB - BeagleBone/BeagleBone Black I/O Expansion Cape


  • Adds two high speed RS-232 serial ports
  • Adds two USB 2.0 ports with overcurrent protection
  • Each USB port provides 5V 500mA power to downstream device
  • Supports USB 2.0 hi-speed (480Mbps), USB 2.0 full speed (12Mbps) and USB 1.1 low speed (1.5Mbps) data rates
  • Supports SD specification 1.0/1.1/2.0/SDHC up to 32GB
  • Compatible with SDXC up to 2TB
  • Micro SD card reader has a transfer speed of 480Mbps
  • No software or drivers required


Compliance USB 1.0/1.1 & 2.0 compliant, USB 3.0 compatible
Speed 480Mbps, hi-speed USB
12Mbps, full-speed USB
1.5Mbps, low speed USB
Number of Ports 2
Output Voltage +5VDC per port
Output Current 500mA maximum per port
Serial Interface
Interface RS-232
Number of Ports 2
Max. Speed 921.6kbps for transmit & receive
RS-232 Signals DCD, RxD, TxD, DTR, GND, DSR, RTS, CTS, RI
Data Bits 7, 8
Parity None, odd, even, mark, space
Stop Bit 1, 2
FIFO 128 byte transmit
384 byte receive
microSD Card Reader
Speed 480Mbps
Supported Memory Cards microSD/SDHC/SDXC
Power Input No external power needed
Dimensions 80mm × 55mm × 20mm (L × W × H)
Weight 52g
Operating Temperature 0°C to 70°C (32°F to 158°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Operating Humidity 0% to 90% RH
Safety Approvals CE, FCC