Gamestop offers Seagate 8TB Game Drive Hub Designed for Xbox for $99.99 (reg $219.99) with free shipping.

Product Description:
Designed specifically for the Xbox One, the 8TB Game Drive Hub from Seagate can store 200 games or more, depending on the file sizes of the games. With this portable storage drive, you can take your favorite games with you wherever you go and play them on any Xbox One console with your own Xbox Live login. High-speed USB 3.0 connectivity delivers full gaming performance like playing from your console's internal hard drive.

• USB 3.0 performance for high-speed gaming
• Designed to make your entire game library portable
• Small enough to slip into your backpack
• Xbox One console automatically detects and sets up the drive
• 8TB storage for 200+ Xbox One games