The HP EliteDesk 800 G4 TWR with Intel Core i7-8700 supports M.2 SSDs, but only PCIe Gen 3.0, as the processor and motherboard do not natively support PCIe 4.0. The WD Blue SN580 is a PCIe 4.0 NVMe SSD that is backwards compatible with PCIe 3.0, meaning it will technically work in your PC, but you will not get full PCIe 4.0 speed, but will be limited to PCIe 3.0 level.
If you want to install an M.2 2280 SSD from Kingston, this is generally compatible as long as it is an NVMe M.2 SSD and your motherboard has a suitable M.2 slot. The WD Blue SN580 is therefore compatible, but the speed advantage of PCIe 4.0 is not utilised.
Recommendation: You can use the WD Blue SN580 without any problems if you want a fast 1TB M.2 NVMe SSD. The performance is limited by the PCIe 3.0 interface of your PC, but the SSD is technically compatible and works reliably.
is there an adapter for the part to sata for installation in a housing?
in other words: the ssd is supposed to replace a normal 2.5" hdd in a usb case. i need a mounting frame/adapter for this. unfortunately, i can only find complete cases, which i don't want, or adapters that don't support nvme.
please no stupid questions or comments about the sense and purpose of it or that it is not worth it, a normal sata ssd is better, the speed is not fully utilised or whatever. the fact is, i want to install it in an existing case. whether it makes sense or not, it doesn't matter to anyone :)