A long narrow slot in a computer into which an expansion card can be inserted.
HPE Alletra Storage Server 4120 PCIe Primary Riser Kit

HPE Alletra Storage Server 4120 PCIe Primary Riser Kit

Hewlett Packard Enterprise
£733.99
HPE DL360 Gen10 SATA M.2 2280 Riser Kit slot expander

HPE DL360 Gen10 SATA M.2 2280 Riser Kit slot expander

Hewlett Packard Enterprise
£111.99
HPE XL2xxn Gen10 Plus USB Mezzanine Riser Kit

HPE XL2xxn Gen10 Plus USB Mezzanine Riser Kit

Hewlett Packard Enterprise
£98.99
HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

Hewlett Packard Enterprise
£507.99
HPE DL Gen10 x16/x16 GPU riser kit slot expander

HPE DL Gen10 x16/x16 GPU riser kit slot expander

Hewlett Packard Enterprise
£129.99
HPE DL Gen10 x16/x16 GPU riser kit slot expander

HPE DL Gen10 x16/x16 GPU riser kit slot expander

Hewlett Packard Enterprise
£129.99
HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

Hewlett Packard Enterprise
£410.99
HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

HPE Integrity rx2800 i2 PCIe 3-Slot Riser Board slot expander

Hewlett Packard Enterprise
£410.99
HPE ProLiant ML110 Gen11 GPU Riser Kit slot expander

HPE ProLiant ML110 Gen11 GPU Riser Kit slot expander

Hewlett Packard Enterprise
£455.99
HPE Alletra Storage Server 4120 PCIe Secondary Riser Kit

HPE Alletra Storage Server 4120 PCIe Secondary Riser Kit

Hewlett Packard Enterprise
£733.99
HPE 662885-B21 slot expander

HPE 662885-B21 slot expander

Hewlett Packard Enterprise
£136.99
HPE 659805-B21 slot expander

HPE 659805-B21 slot expander

Hewlett Packard Enterprise
£300.99