Electrical connector assembly

A receptacle (102) for mounting to an electrical component comprises a contact retention portion (122) configured to hold electrical contacts. The contact retention portion includes a connector face (128) configured to engage a plug assembly, and a pair of opposite sides (123, 125). A pair of mounting structures (124, 126) extend outwardly from the opposite sides. Each of the mounting structures has a fastener passage (164) and a latch cavity extending parallel to the fastener passage. The fastener passage (164) is configured to receive a fastener for mounting to the electrical component, and the latch cavity is configured to receive a latch member (166) for mounting to the electrical component. A pair of guide posts (156, 157) extend from the mounting structures (124, 126). Each of the guide posts comprises a base (168, 169) and a tip (172, 173), and each of the guide posts has a curved contour and a planar side (175) extending from the base (169) to the tip (173).