MSI SPATIUM M480 PRO

The MSI SPATIUM M480 PRO is a 4TB Gen4 monster with top-tier speeds and serious endurance. It's expensive at $730, but if you need this much fast storage in one slot, it's one of the best options out there. Skip it if you're on a budget or need portable drive performance.

Sequential speeds sit at the top of the Gen4 charts, 7400 read and 7000 write. That puts it in the 94th percentile for speed in our database, which is about as good as PCIe 4.0 gets before you jump to Gen5. Random performance is solid at the 80th percentile, not class-leading but plenty snappy for real-world use. The Phison E18 controller is a known quantity, reliable and well-optimized. Under sustained load, the DRAM cache keeps things smooth. One thing to note: this drive is not built for portable enclosures. The portable score is rough, so if you're planning to toss it in an external USB enclosure, you'll want to look elsewhere.

Against the WD_BLACK SN850X, the M480 PRO trades blows on sequential speeds but the WD drive has stronger brand recognition and more user reviews. The Samsung 9100 PRO is a Gen5 drive, so it'll outpace this on paper, but you'll pay for that privilege and most people won't feel the difference in daily use. The Kingston Fury Renegade and Seagate FireCuda 530R are both solid Gen4 alternatives, often cheaper at similar capacities. Where the M480 PRO stands out is the combination of 4TB capacity, high endurance, and that 94th percentile speed ranking. It's a niche sweet spot.

At $730 USD, this is not a cheap drive. You're paying a premium for the 4TB capacity and top-tier Gen4 performance. If you need this much fast storage in one slot, the price makes sense. But if 2TB will do, you can save a chunk of change and still get excellent Gen4 speeds from competitors. The value equation really depends on whether 4TB is a must-have or a nice-to-have.

The MSI SPATIUM M480 PRO is a 4TB PCIe 4.0 drive that hits 7400 MB/s read and 7000 MB/s write. That's basically the ceiling for Gen4, and MSI pairs it with TLC NAND, a DRAM cache, and Phison's E18 controller. You're getting a full-fat flagship drive here, not some DRAM-less budget stick.

Capacity is the headline. 4TB in a single M.2 slot is a lot of room, and the 3300 TBW endurance rating means you can hammer this thing for years. The 5-year warranty backs that up. It's built for workstations and laptops that need serious storage without juggling multiple drives.

Skip this if you're planning to use it in a portable enclosure. The portable score is one of the worst we've seen for this class of drive, and you'll be fighting thermals and performance drops. Also skip it if you don't need 4TB, because you're paying a capacity premium you won't use. Budget builders should look at 2TB Gen4 drives that cost half as much.

Buy this if you need 4TB of fast Gen4 storage in a single slot and you don't want to compromise on endurance or sequential performance. It's a workstation drive at heart, and it excels there. Laptop users with a free M.2 slot will also be happy, assuming thermals are managed. If you're just gaming or doing light productivity, you can spend less and never notice the difference.