QUALIGON has released an upgraded of a member of its MSSB SIM-switching family. The Matrix SIM Switchbox 4x1 is the small solution for SIM switching. The box can switch up to 4 SIMs to one device and was developed for the needs of our customers having portable device. MSSB 4x1 can be controlled via bluetooth and offers also a power bank for device charging. This supports you in daily testing scenarios. Furthermore it can be controoled via USB protocol in binary or text mode, and also via REST-API or via web interface. Due to its low cost, this MSSB is the ideal entry level for SIM switching.