MA4A-B1 VESA Adapter for Medium Mounts Fits MF110, VM400 and any Virtual Axis 3D™ interface The MA4A adapter allows VESA 200 x 200-compatible mounting plates to support TVs with VESA 400 x 300, 400 x 200, 300 x 300, 300 x 200 or 300 x 100 hole patterns. The MA4A attaches easily to Sanus MF110 and VM400 wall mounts, as well as any mount with a Virtual Axis 3D™ interface