If you just want an internal drive for 360 degree gaming, this one will do. However, if you're trying to play the original titles with backwards compatibility, you'll have to flash the relevant sections yourself, which can be tricky. If you already have a 2.5" SATA hard drive, just get an enclosure as you still have the same work to do.
π Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
π Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review
πΎ SanDisk 2TB Extreme PRO Portable SSD - Ultra-Fast Speeds up to 2000MB/s - USB-C, USB 3.2 Gen 2x2 - High-Performance External Solid State Drive - SDSSDE81-2T00-G25
10 Review
π SAMSUNG T5 Portable SSD 2TB - High-Speed USB 3.1 External Solid State Drive, Black (MU-PA2T0B/AM)
40 Review
SAMSUNG T7 Touch Portable SSD π½ 2TB: High-speed, Secure & Compact Solid State Drive!
17 Review
π StarTech.com 3.5in Silver Aluminum USB 3.0 External SATA III SSD / HDD Enclosure with UASP - Portable USB 3 3.5" SATA Hard Drive Housing (S3510SMU33)
10 Review