Micron MTFDKCC3T2TFS-1BC1ZABYY 3.2TB NVMe PCIe 4.0 U.3 Mixed Use SSD 7450 MAX

The Micron MTFDKCC3T2TFS-1BC1ZABYY is a 3.2TB 7450 MAX drive, Micron's mixed-use PCIe Gen4 x4 NVMe SSD in the 2.5-inch U.3 form factor at 15mm height. It uses the same controller and 176-layer 3D TLC NAND as the 7450 PRO, but sets aside more spare flash, which is why it shows 3.2TB instead of 3.84TB and carries a higher write rating of three drive writes per day.

That extra headroom matters for jobs that write constantly: transactional databases, write-back caching tiers, message queues, log ingestion, and virtual machine stores with busy guests. Micron rates the 3.2TB model at 17,500 TB written, roughly 390,000 random 4K write IOPS and about 500,000 IOPS on a 70/30 read/write mix, while sequential speeds match the PRO at up to 6,800 MB/s read and 5,300 MB/s write. If your data is mostly read and rarely rewritten, the 3.84TB 7450 PRO gives more capacity for the money.

The U.3 interface shares the SFF-8639 connector with U.2 and is meant to work in tri-mode U.3 bays and most U.2 NVMe bays. Older backplanes that only wire SAS or SATA will not run an NVMe drive. This is the non-SED version, and it ships as a bare drive with no carrier. Branded servers from Dell, HPE or Lenovo usually need the vendor's tray, and their management tools may report non-OEM firmware.

Before ordering, check:

• That the bay is wired for NVMe through a U.2 or U.3 backplane or a tri-mode controller.
• That your daily write volume fits a 3 DWPD rating.
• Whether you need encryption. The SED version is MTFDKCC3T2TFS-1BC15ABYY.
• That you have the right carrier and a 15mm-tall slot.