A horizontal type card edge connector (10) includes an elongated insulative housing (12) defining a central slot (14) for receiving a module therein. Two rows of passageways (16) are provided by two sides of the central slot (14) in the housing (12) for receiving therein a corresponding number of contacts (18) which are adapted to be engaged with the corresponding circuit pads on the module. Two end blocks (20) disposed at two opposite ends of the housing (12), extend in both downward and rearward directions to define a space therebetween whereby the right angle type contact tails (30) are positioned in the space. A back shell (70) with an L-shaped cross-sectional configuration is attached to the back side of the housing (12) by two latch devices (76) intergrated therewith for protectively covering all the contact tails (30), wherein a horizontal wall (74) and a vertical wall (72) of the back shell (70) are respectively supported by top edge sections (81) and back edge sections (80) of the end blocks (20).
