"UNDER BLOCK 4", STK30.4G, Four USB.A & Two Power Outlets, Ten Colors.
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Item #: STK30.4G.
Our Price: $0.00




Utilizing the same housing as COLORBLOCK and secured on the underside of surfaces with a mounting bracket, UNDERBLOCK boasts all the same features with the added ability to provide charging capabilities while maintaining a minimal imposition on line of sight.  The latest technology connectors available for charging and in ten colors to best suit your interiors.  UNDERBLOCK mounts seamlessly on the undersides of desks, tables, nightstands, community tables, computer labs desking.

This highly functional Power & Technology Grommet helps maximize user efficiency and output.

STK30.4G; “2 DUAL USB.A & 2 POWER”

  • Two Dual USB.A ports (2amp, charges tablets); Total 4 outlets.
  • Two Power Outlets rated 15Amp.
    • Electrical Cord: 6 ft. length
    • UL & CUL Listed.
      • UL LISTING UL962A (Furniture Power & Distribution Units.  
      • Electrical codes vary by region; confirm with a local electrician versed in codes to confirm conformity.

Outside Dimensions: 7” L x 1-7/8” H x 2-9/16” D. 

Minimal Surface Thickness: ¾”

Standard Colors:  Black, White, Indigo, Dijon, Chili, Storm, Jade, Berry, Dove, Peacock

Part Numbers: STK30.4G.BLK (Black), STK30.4G.WHT (White), STK30.4G.LIN (Indigo), STK30.4G.DIJ (Dijon), STK30.4G.RCP (Chili), STK30.4G.PHG (Phantom), STK30.4G.GJA (Jade), STK30.4G.MAG (Magenta), STK30.4G.DGR (Dove), STK30.4G.LPC (Peacock).


1-USB.C 18w, 2-Power Outlets, 1-Dual USB.A (2-outlets), version also available; see STK30.4E Series.

1-USB.C 60W & 2-Power Outlet version also available; see STK30.4Z Series.


UNDER BLOCK is offered in 2, 3, 4 and 5 port configurations.  5-port configurations have standard “Circuit Breaker Plug” which measures 1-1/2”H x 1-7/8”W x 2” Projection. 

Also available with USB Type C, as well as, Taper Resistant Simplexes; Contact for further info.



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