Best Hard Drives for Plex

It depends on your library size and media quality. A 4K Blu-ray rip averages 50–80 GB, while a 1080p encode is 5–15 GB. For a modest 200-movie library in 1080p, 4 TB is enough. For 4K collections or heavy TV show hoarding, plan for 12–20 TB or more.

For 1–3 simultaneous streams, any modern 5400 or 7200 RPM drive is fast enough — sequential read speeds of 150+ MB/s far exceed what even 4K streaming needs (~100 Mbps = ~12.5 MB/s). Drive speed only matters if you are transcoding multiple streams simultaneously, and even then the CPU is usually the bottleneck.

HDDs are far more cost-effective for Plex media storage. At $10–15/TB for HDDs vs $50–80/TB for SSDs, there is no performance benefit to justify the cost — Plex streaming is sequential reads, which HDDs handle easily. Use an SSD only for the Plex metadata/database folder to speed up library scanning.

Yes. Plex workloads are almost entirely sequential reads, which SMR drives handle perfectly. The write performance penalty only matters during the initial media copy, and even then it is tolerable. SMR drives are often cheaper per TB, making them a good budget choice for Plex libraries.