Yesterday, keen trackers of brand-new Xbox accessories stumbled upon the first-ever 4 TB Storage Expansion Card—courtesy of Seagate. Prior to a fresh discovery of the (now inactive) listing on Best Buy, Xbox Series X|S owners were only able to select 512 GB, 1 TB, and 2 TB options (produced by Seagate and WD). Since launching back in 2020, Microsoft's proprietary SDD design remains a controversial prospect—mostly due to high prices, associated with the utilization of a CFExpress standard. In comparison, Sony's rival current-gen consoles—the PlayStation 5 and PlayStation 5 Pro—can be user upgraded with relatively reasonably-priced standard-sized internal M.2 SSDs (depending on specs). The Xbox Series Expansion Card requires less "tech expertise," since it is simply inserted into a special rear port.

Before the scrubbing of Best Buy's prematurely published product page, gaming news outlets focused on a $429.99 cost of ownership. It is unclear whether eager customers have secured first batches of stock, but Microsoft and Seagate (its official storage provider partner) have not issued any press material regarding the leaked 4 TB flagship model. Curiously, Best Buy's brief sale included a special launch discount. According to screen captures, the normal MSRP would be $499.99. Seagate's 2 TB SKU is currently on offer: $219.99 (instead of $259.99), while the WD BLACK C50 2 TB card sports a full price tag of $299.99. Naturally, better value is offered by (USB-connected) external solutions. As of early 2025, hardcore storage enthusiasts can link up 16+ TB storage devices to Microsoft's Xbox Series X and S machines. Industry experts believe that Seagate's 4 TB Storage Expansion Card will be introduced during this weekend's (Sunday, June 8) Xbox Games Showcase .