HDMI and USB 3.0 Table Grommets for BZBGEAR BG-UHD-KVM41

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The BG-SC-GRHU is a table grommet for BZBGEAR’s BG-UHD-KVM41 switcher. Each grommet supports resolutions up to 4Kx2K@60Hz 4:4:4 and features an HDMI input, USB 3.0 connection, and controls for source selection and video mute.

Users can connect their devices via the HDMI or Type B USB inputs. The HDMI and Type-A USB outputs provide the direct connection to the switcher.

Each grommet additionally has a 3-pin terminal control block to connect to the GR1~GR4 ports of the BG-UHD-KVM41 switcher, providing support for workstations or conferencing setups with the need to easily switch between and control multiple computers.

Tech Specifications

Video Input
Input (1) HDMI
Input Connector (1) Female type-A HDMI
Video Output
Output (1) HDMI
Output Connector (1) Female type-A HDMI
Control Connector (1) Type-B USB, (1) Type-A USB, (1) 3-pin Terminal Block
Resolution Range Up to 4Kx2K@60Hz 4:4:4, HDR10, Dolby Vision
Operation Temperature 14-25°F ~ +131-25°F / -10°C ~ +55°C
Storage Temperature -25-25°F ~ +158-25°F / -25°C ~ +70°C
Relative Humility 10%-90%
Dimension (W*H*D) 3.0" x 1.2" x 3.0" [76mm x 29.6mm x 76mm]
Net Weight (g) 0.23lbs [105g]


  • 1 x BG-SC-GRHU Table Grommets
  • 1 x 3-pin Terminal Block
  • 1 x 2 Mounting Screws (PM3*8mm)
  • 1 x 2 Mounting Screws (PM3*16mm)
  • 1 x 2 Mounting Screws (PM3*25mm)


  1. Show Me button: Press the button to select the HDMI input source.
  2. Black Output: Press the button to output black screen for display.
  3. HDMI Input: Connect to HDMI source device (e.g. PC).
  4. USB 3.0 Type-B: Connect the PC to the port.
  5. 3-pin terminal block: Connect to the GR1-GR4 port of the switcher.
  6. HDMI Output: HDMI output port to connect the HDMI input port of the switcher.
  7. USB 3.0 Type-A: Connect to the port of switcher.