This Heatsink is compatible with Ubox V2 products:
Dual Ubox V2 75V 100Ax2 standard controller
Dual Ubox V2 75V 100Ax2 J controller
Dual Ubox V2 100V 100Ax2 controller
Size: 112*80*16mm
Locking screw size : M3*20mm (Shipping don't come with screws)