ST19 3-in-2 Type Memory Card Connector JAE Electronics ST19 3-in-2 Type Memory Card Connector is a compact and lightweight push-eject tray connector that is compatible with 2-types of combinations: 2x nano-SIM cards, or 1x nano-SIM card and 1x microSD card. The ST19 connector features 20x gold-plated contacts, a gold-plated switch and cover in a PCB mount style. This ST19 memory card connector operates from -40°C to +85°C with a 0.5A rated current, and 10V rated voltage. Features include a tray detection switch and compatibility with a thickness of nano-SIM cards. Typical applications are smartphones, tablets, notebook PCs, and other compact wireless devices.