The JUSB1 (red mark) connector supports MSI's new SuperCharger technology. wh ch prov Z77ma-g45 series; z75ma-g45 series (80 pages). Motherboard. In this demonstration, we'll show you how to charge your smartphones or tablets with JUSB1 Super-Charger. Buy Used - Good: MSI Z77MA-G45 LGA Intel Z77 HDMI SATA 6Gb/s USB Micro ATX Intel Motherboard with UEFI BIOS with THX TRUSTUDIO PRO.