Samsung Semiconductor introduced its 990 PRO Flagship PCIe Gen 4 SSD range a year ago, with 1 TB and 2 TB models available day one on launch. The South Korean company also teased a 4 TB variant for release in 2023—recent activity on social media indicates that the higher capacity model will be coming soon (but no firm date was touted): "You wanted it so badly, we had no choice but to deliver. The 4 TB 990 PRO by Samsung SSD is coming. Same blazing-fast storage with double the max capacity for gaming, video, 3D editing, and more. Stay tuned for more details."

According to Samsung's specification sheet, the 990 Pro 4 TB is due to arrive in two forms—a plain drive (MZ-V9P4T0BW) with a simple/thin graphene heat spreader and a fancier version sporting an aluminium heatsink (MZ-V9P4T0CW). The latest marketing blurb continues to place emphasis on the 990 Pro M.2 2280 drives being ideal candidates for upgrading the PlayStation 5's (PCIe 4.0) internal storage—we will have to wait closer to launch time for the 4 TB variant's MSRP, although its eventual pricing is most likely going to target enthusiast PC users. The 2 TB model (w/ heatsink) is currently available for $149.99 (down from the original launch value of $309.99) at the time of writing.