I currently have a 300 GB solid-state external USB 2.0 hard drive connected to my Xbox 360 slim and install / load games from it.

Would load times in my games improve if I use the SATA drives (instead of the USB hard drive) like shown in the picture? enter image description here

There were some conflicting information when I looked into it (i.e.: here). If anyone did a test comparison on these two types of storage on the Xbox 360S, it could help answer the question.

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The Xbox 360 Slim uses SATA II which has an uncoded transfer rate of 2.4 Gbit/s (300 MB/s). USB 2.0 has an effective High Speed signaling rate throughput of 35 MB/s.

The Xbox 360 Slim comes with a Hitachi HTS545025B9SA00 1.5Gbps (That's SATA I with an uncoded transfer rate of 1.2Gbps or 150 MB/s which is half of SATA II). SATA II is backward compatible but you'll be running at the lower SATA I speed. Moreover the included drive is a 5400 rpm HDD, not an SSD.

Even with this, I expect you would see performance gains from using the SATA drive. Ideally you don't want to be using an external drive for gaming through USB as this takes more processing of the data going going back and forth, external drives aren't built for constant read/write speed the way internal ones are, and USB is just slower than SATA all day long.

Conclusion: Use the current internal SATA that you have and if you want even faster performance consider investing in a SATA II SSD where you'll really see your storage bottleneck disappear.

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  • Thanks for the helpful response @Adan; Would you happen to know if any of the official Microsoft hard drives are SATA II SSD's, or better yet, any source of info that shows the technical specs of these drives? – plu 2 days ago

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