SAMSUNG PM991a PM991 512 GB NVMe SSD M.2 2230 For Microsoft surface Steam Deck | eBay
New Dell Inspiron 5000 with really slow samsung PM991 256GB nvme ssd read/write speeds - Dell Community
Does anyone here have the Samsung 512GB PM991a SSD? What useable space are you getting? After installing Steam OS mine says 459.9 free of 463.4 GB. : r/SteamDeck