OWC Aura Ultra IV - M.2 PCIe Gen4 NVMe SSD - 8TB

The OWC Aura Ultra IV is OWC's Gen4 NVMe SSD, and it launches at a remarkable 8TB capacity in the M.2 2280 form factor. It connects via PCIe 4.0 x4 with NVMe 1.4 and delivers 7,200/6,500 MB/s sequential read/write. Random I/O hits 1,000K/1,000K IOPS, and endurance is rated at 5,600 TBW.

8TB in M.2 2280

The headline is the capacity. An 8TB NVMe drive in a standard M.2 form factor is still uncommon. OWC uses a double-sided PCB to fit the NAND, which means it may not fit in all M.2 slots (some laptop slots and heatsinks have clearance restrictions for double-sided modules). Check your device's compatibility before buying.

Performance

At 7,200/6,500 MB/s, the Aura Ultra IV is competitive with top-tier Gen4 drives. The 1M/1M IOPS random performance suggests a DRAM-equipped controller, though OWC doesn't prominently specify the controller used. Power consumption peaks at 10.5W during writes, which is high for Gen4 and may be a concern in laptop installations.

Endurance

5,600 TBW at 8TB is a strong rating (roughly 700 TBW per TB). Seven-year endurance equivalence rating per OWC (2,192 GB/day for 7 years).

Best for: Users who need maximum M.2 capacity with Gen4 speeds. Video editors, content creators, and workstation builds where 8TB of NVMe storage eliminates the need for multiple drives or external storage. OWC's Mac-focused ecosystem adds value for Apple users.

Avoid if: You need a single-sided M.2 drive (laptop or tight clearance). The 10.5W write power draw may be excessive for battery-powered devices. If you don't need 8TB, other Gen4 drives offer better value per GB at smaller capacities.