Seagate at CES 2019 unveiled its first NAS-grade solid state drives, under the Ironwolf 110 series. A "NAS-grade" HDD/SSD is typically that which has its durability or endurance rated halfway between client- and enterprise segments. The Ironwolf 110 series boasts of 1 DWPD endurance, and comes in capacities of up to 3.84 TB. Backing these endurance chops is a 5-year warranty. The drive is also designed keeping in mind the rigors of 24x7 operation and RAID environments. Although built in the 7 mm-thick 2.5-inch form-factor with SATA 6 Gbps interface, Seagate understands that a lot of home/SOHO NAS devices only feature 3.5-inch caddies. It's likely that these drives will include a simple accessory that lets you use them with 3.5-inch trays. Available in capacities of 3.84 TB, 1.92 TB, 960 GB, 480 GB, and 240 GB, the Ironwolf 110 incorporates 3D TLC NAND flash memory. All variants are capable of up to 560 MB/s sequential reads, and barring the 240 GB variant that writes at up to 345 MB/s, all variants offer up to 535 MB/s sequential writes. The 4K random access read performance ranges between 85,000 to 90,000 IOPS for the 960 GB thru 3.84 TB variants, and between 55,000 to 75,000 IOPS for the 240 thru 480 GB ones.