Matrox Dual/TripleHead2Go Power Adaptor,

Power Adaptor Kit for GXMs
Power Adaptor Kit for Graphics eXpansion Modules (GXM) when a powered USB port is not available on the system or when more than one GXM unit is attached to the system. The kit includes: 3' USB to USB + power jack cable, 15W power supply, power cord for US, EU, US/EU to AU power plug adapter and US/EU TO UK power plug adapter.
 
Compatible with:
DualHead2Go Analog Edition (D2G-A2A-IF)
DualHead2Go Digital Edition (D2G-A2D-IF)
DualHead2Go DP Edition (D2G-DP-IF & D2G-DP-MIF)
DualHead2Go Digital SE (D2G-DP2D-IF)
DualHead2Go Digital ME (D2G-DP2D-MIF)
TripleHead2Go Digital Edition (T2G-D3D-IF)
Triplehead2Go DP Edition (T2G-DP-IF & T2G-DP-MIF)
TripleHead2Go Digital SE (T2G-DP3D-IF)