MC3 to MC4 Cable Adapters PV Solar Panel Connector Pair w/6.5 Inch Cable MC3 to MC4 Cable Adapter for PV solar modules; With 6.5 inch cable. Call (510-498-8221) or message us via Amazon for New Suniva Solar Panels made in USA!: 240w, 245w, 250w, 255w, 260w, 285w, 295w, 300w, 305w, 310w!