Dell OEM base bottom assembly for the Dell Precision 15 (7510) without the USB-C port. This base assembly doe NOT include the port for the optional USB-C port; compatible ONLY with 7510 systems that do NOT have the optional USB-C port. This base assembly includes the Smart Card slot. Dell P/N: 3K8M9, 03K8M9 Guaranteed Compatible Dell Laptops: Precision 15 (7510) WITHOUT USB-C INCLUDED: Battery Bay Spring Latch NOTE: This base assembly does NOT include the port for the optional USB-C port; compatible with 7510 laptops that are NOT equipped with the optional USB-C port. You can match your part number or contact us if you###re not sure which base assembly to select.