@ryuuuk
Its specs
https://support.hp.com/bg-en/document/c06612532
1. RAM: You can upgrade to
(a) 8GB: add same 4GB to slot 2 or using the following compatible RAM
https://www.crucial.com/memory/ddr4/ct4g4sfs8266/ct18228908
(b) 16GB: install 8GB to each slot using using the following compatible RAM
https://www.crucial.com/memory/ddr4/ct2k8g4sfra266/ct18820350
(c) 32GB (max): install 16GB to each slot using using the following compatible RAM
https://www.crucial.com/memory/ddr4/ct2k16g4sfra266/ct18855936
or (will run at 2666MHz): https://www.crucial.com/memory/ddr4/bl2k16g32c16s4b/ct18228848
2. STORAGE: You can add M.2 NVMe SSD drive to your machine using
https://www.samsung.com/au/memory-storage/970-evo-nvme-m2-ssd/MZ-V7E2T0BW/
https://www.crucial.com/products/ssd/crucial-p2-ssd
Or similar from reputable vendors.
One example (compatible drive, can use smaller/larger capacity)
https://www.crucial.com/ssd/p5/ct1000p5ssd8/ct18228939
Regards.
BH***
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