Comparison : Item # 0319800-A, 118 Input/Output (I/O) and 2.54 Millimeter (mm) Pitch Edge Connectors Socket
Item # 0319800-B, 118 Input/Output (I/O) and 2.54 Millimeter (mm) Pitch Edge Connectors Socket
Item # 02031 122 6518B, 12 Input/Output (I/O) Tube Socket
Item # 02989 302 6218A, 30 Input/Output (I/O) and 3.96 Millimeter (mm) Pitch Edge Connectors Socket
Item # 02989 302 6215, 30 Input/Output (I/O) and 3.96 Millimeter (mm) Pitch Edge Connectors Socket