What is the cheapest SSD per GB right now?

As of September 21, 2026, 18:52 UTC, the cheapest SSD per gigabyte BuyPerUnit tracks is the ORICO 4TB External SSD up to Read Speed up to 560MB/s USB Type-C Portable SSD-B5PLUS Green at $0.0750/GB ($299.99 at Newegg). The median across 1,745 in-stock listings is $0.2295/GB; anything under $0.1750/GB beats three quarters of them. Prices are re-synced twice daily from Amazon, Best Buy, and Newegg, so the leader changes often — the live ranking is always current.