The SG-BGA-7203 socket houses 0.5-mm pitch, 40-ball WLCSPs and 0.4-mm pitch, 30-ball WLCSPs. Essentially, the component supports two different WLCSPs for testing in a single socket side by side. It operates at bandwidths up to 10 GHz with less than 1 dB of insertion loss. Contact resistance is typically 20 m? per I/O. Other features include low inductance gold plated embedded wire on elastomer as interconnect material between device and PCB, an operating temperature range from -35°C to +100°C, a pin self inductance of 0.15 nH, mutual inductance of 0.025 nH, capacitance to ground of 0.01 pF, and a current capacity of 2A per pin. Single-unit pricing for the SG-BGA-7203 is $378. IRONWOOD ELECTRONICS, Burnsville, MN. (800) 404-0204.