VideoCardz has some photos and details about MSI's GeForce RTX 3070 Twin Fan. This appears to be a successor to the firm's TOC series, which was last used in the Pascal era. It's basically a lower budget version of the GeForce RTX 3070. The Twin Fan series looks quite basic, it has a dual-fan cooling solution with up to 6mm thick heatpipes and a metal backplate.
MSI will offer a GeForce RTX 3070 Twin Fan with reference clockspeeds and an overclocked model with a 1740MHz Boost. The upcoming GeForce RTX 3060 Ti is also expected to get a Twin Fan version.
MSI unveiled two Twin fan graphics cards, one with factory-overclocking to 1740 MHz the other with NVIDIA reference specs. Surprisingly both are featuring custom PCB with 8pin+6pin power connectors. The display configuration is standard (3x DP + 1x HDMI), though.