USB 32gb SDHC Card Reader for sony PS4 with latest update software v.7.50 | eBay
PS4 Compatible USB Flash Drive Stick - The Best Options | PS4 Storage Expert
2GB microSD LEGACY MEMORY CARD with USB reader for SONY PS4 with software 7.50 v | eBay
Sony PlayStation 4 1TB Console Black 3002337 - Best Buy
SD Card Speed = 90MB/s Easily - PS4+XBOX1 Were using Slow Laptop 5400RPM 70MB/s~ most of your library (99.9%) will run just fine on Steam Deck (Just slower loading) the 399$ Model
How to upgrade your PS4 hard drive (without losing P.T.) | GamesRadar+