The M50-2030005 is a blue jumper socket from the M50 Archer Connector series, designed for manual on-board programming as an alternative to DIP switches. This model features a closed-top design with an integrated handle for easy fitting and removal, and has a body height of 5.50mm. It is built for a 1.27mm (.050") pitch and includes gold-plated contacts to ensure a reliable connection. These jumper sockets are intended for use with corresponding 1.27mm pitch pin headers for various board configuration applications.