Ex-Pro D-Tap Dtap Power Type B 2 Pin Male to Ex-Pro Canon DR-E8 coupler for Canon Camera's using LP-E8 Battery - specifically listed below. Connect the D-Tap Male to your D-Tap battery power output to provide effective power to compatible cameras using the DR-E8 coupler. The Ex-Pro coupler is full chipped with intelligent step down voltage adjustment to mimic the operation of the coupler as if it were connected to an AC Adapter (ACK-E8) providing exact power output for your Canon Camera equipment. Can be used with Ex-Pro V-Mount, V-mount or Gold mount batteries, such as Anton Bauer, Sony, Wondlan,farseeing,BP,PRO-X,ROLUX, Dynacore upto 16v Only..