Mill-Max sockets are the easiest way to install and introduce hot swap to a standard PCB. Available in 7305-Gold, 0305-Tin, 3305-0 Tin, 3305-1 Tin. Features: (7305-Gold) 7305-0-15-15-47-27-10-0 Gold Over Nickel Length: 2.67mm Outside Diameter: 1.96mm Material: Beryllium Copper Alloy Harder to handle, ideal compatibility with smaller builds (0305-Tin) 0305-2-15-80-47-80-10-0 Tin over Nickel Length: 3.94mm Outside Diameter: 1.93mm Material: Beryllium Copper Alloy Easier to handle, may have compatibility with smaller builds (3305-0 Tin) 3305-0-15-80-47-27-10-0 Tin Over Nickle Length: 2.67mm Outside Diameter: 1.47mm (3305-1 Tin) 3305-1-15-80-47-27-10-0 Tin over Nickel Length: 3.30mm Outside Diamete: 1.47mm 1 packet includes 50x MillMax PCB Sockets, Multiple orders will be combined into one bag