US Patent 7261591 Pluggable connector with a high density structure

A pluggable connector (100) includes a dielectric housing (1), a contact group (2), a first sub-assembly (3), a second sub-assembly (4), a third sub-assembly (5), a back cover (6) and a pair of spring tabs (7). The dielectric housing defines a plurality of ribs (118). The first sub-assembly defines a row of front partitions (312) cooperating with the ribs of the dielectric housing and a row of back partitions (314) respectively positioning in opposite sides thereof. The second sub-assembly defines a row of front partitions (412) cooperating with the back partitions of the second sub-assembly and a row of back partitions (414) respectively positioning in opposite sides thereof. The third sub-assembly (5) defines a row of front partitions (512) cooperating with the back partitions of the second sub-assembly and a row of back partitions (514). The back cover defines a plurality of partitions (63) cooperating with the back partitions of the third sub-assembly.