320GB Portable External Hard Drive USB-A/C for PC Mac PS4 Xbox Black

Plug & Play Universal Compatibility No software installation required. Simply connect via USBA or TypeC to your PC, Mac, Linux machine, PS4, PS5, Xbox One, or Xbox Series X^^S and start using it instantly.
Note: Games for PS5/Xbox Series X^^S cannot be played directly from this drive, but you can store and play PS4/Xbox One titles directly from it, freeing up your consoles internal storage for newer, larger games. ^^ HighSpeed Transfers Get More Done Move large files like work documents, game installations, or HD videos in no time. The fast transfer rate helps you sync and back up data quickly, so you spend less waiting and more time creating, playing, or working. ^^ Compact, Rugged, and TravelReady Its slim, lightweight design fits easily into your backpack, briefcase, or gaming bag. Built with a shockresistant exterior, this drive withstands the bumps and jostles of daily commutes, campus life, or travel reliable performance wherever you go. ^^ Versatile Backup for Work, Media, and Gaming Perfect for backing up your laptop, desktop, or console. Store precious photos, movies, music collections, and entire game libraries all in one place. Need help? Our support team is always ready to assist with any questions. ^^ What You Really Get This drive offers ample space for all your files.

Please note that the available capacity shown on your operating system may be slightly less due to different calculation methods (decimal vs. binary).
For reference: 160GB 149GB, 250GB 233GB, 320GB 298GB, 500GB 466GB, 1TB 931GB. This is standard for all hard drives, and yours is performing exactly as expected.