@ugtech2: USB, HDMI, power. Same idea on all three. Completely different designs. YISC is huge. No focus dial because it is the only one with autofocus. Aurzen has the focus dial on top plus a carry strap so you are less likely to drop it. Full Aurzen vs MagCubic vs YISC comparison is on the channel. #miniprojector #portableprojector #budgetprojector