Part QK731A is compatible in the following Models:

HPE 8/20q Fibre Channel Switch

HPE 8Gb Simple SAN Connection Kit - AK241B
HPE 8/20q Fiber Channel (FC) 16-ports Active Switch - AK242B
HPE 8/20q Fiber Channel (FC) 8-ports Active Switch - AQ233B

HPE Premier Flex Cables

HPE PREMIER FLEX MPO/MPO OM4 12F 50M CABLE - QK731A

HPE SN6000 Stackable Fibre Channel Switch

HPE SN6000 8Gb 24-pt Single Power FC Switch - AW575B
HPE SN6000 8Gb 24-pt Dual Power FC Switch - AW576B
HPE SN6000 12-pt Single Power FC Switch - BK780B

HPE Switch SFP+ Modules

HPE FF 12900 48p 10GbE SFP+ EA Mod - JG624A
HPE FF 12900 48p 10GbE SFP+ EC Mod - JG626A
HPE FF 12900 48p 1/10GbE SFP+ FX Mod - JG888B
HPE FF 12900 48p 1/10GbE SFP+ FE Mod - JH249A
HPE FlexFabric 12900E 48-port 1/10GbE SFP+ 2-port 100GbE QSFP28 HB Module - JH360A