Xbox Series X|S owners can take advantage of significant savings on officially licensed expansion cards during Amazon's Prime Big Deal Days. The Seagate 2TB Xbox Expansion Card is currently available for just $199, representing a $50 discount from its usual price of $250. Amazon has set a countdown timer on this offer, which is scheduled to end tonight, October 9, at 11:59 PM PT.

Meanwhile, deals on the WD Black C50 Expansion Cards—priced at $65 for 512GB and $120 for 1TB—do not feature a countdown clock, so their availability remains uncertain. The Seagate 2TB drive offers the most value, while Western Digital's smaller capacity drives are notably cheaper (as expected). Space on your Xbox Series X|S can run out faster than you might think. The Series X provides 802GB of usable space, whereas the base model Series S offers 364GB.

Modern AAA games consume storage rapidly, and if you're an Xbox Game Pass Ultimate subscriber, regularly deleting games to make room for new ones could become a necessity. While you can use regular USB external hard drives with your Xbox Series X|S, these drives can only store Series X|S games. To play them again, you would need to transfer them back to your Xbox's SSD. In contrast, Seagate's and Western Digital's Expansion Cards function as seamless extensions of your Xbox's SSD, allowing you to store and boot games just as you would with internal storage.

Thanks to Xbox Velocity's proprietary technology, there's no compromise on data transfer speed, ensuring you still enjoy rapid loading times and the Quick Resume function, enabling you to switch between games in seconds.