# OWC Aura Pro IV 2TB - PCIe 4.0 NVMe SSD Review (2026)

The OWC Aura Pro IV 2TB is a Mac-and-PC flagship PCIe 4.0 NVMe - Innogrit IG5236 controller, 176-layer Micron TLC NAND, 2 GB of dedicated DRAM, and a 1,000 TBW endurance rating over five years.

Quick answer: The OWC Aura Pro IV 2 TB is the right pick for Mac creators who want a name-brand non-Phison flagship with first-party compatibility lists, and for PC builders who prefer the Innogrit IG5236 controller over the more common Phison E18. Buyers chasing the highest TBW should look at the WD Black SN850X 2 TB instead, and PS5 owners can save money with the Crucial T500 2 TB at similar real-world performance. Skip the Aura Pro IV if you want bundled consumer monitoring software in the style of Samsung Magician or WD Dashboard - OWC's tooling is more storage-engineer oriented. As a flagship PCIe 4.0 drive at 2 TB the Aura Pro IV holds its own against the Phison E18 fleet on sustained throughput and offers a reasonable five-year warranty.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Innogrit Rainier IG5236 |
| Memory type | Micron 176-L TLC |
| DRAM cache | SK Hynix DRAM |
| Sequential read | 7400 MB/s |
| Sequential write | 6250 MB/s |
| Random read IOPS | 1000000 |
| Random write IOPS | 950000 |
| Endurance | 1000 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Manufacturer ratings for the Aura Pro IV 2 TB land at 7,400 MB/s sequential reads and 6,250 MB/s sequential writes, with random IOPS that retailer listings quote at roughly 1,000,000 reads and 950,000 writes. PCWorld's CrystalDiskMark 8 benchmarks place the drive a fraction above the Seagate FireCuda 530 2 TB in combined sequential performance, putting it in the flagship PCIe 4.0 bracket alongside the WD Black SN850X 2 TB and Samsung 990 Pro 2 TB.

Real-world transfer performance is the more useful number for content creators. PCWorld measured a 48 GB folder transfer lag the FireCuda 530 by only two seconds, while a 450 GB single-file write finished in 210 seconds - an average of roughly 2.1 GB/s across the run including post-cache TLC-direct writing. That sustained number is what separates the Aura Pro IV from cheaper DRAM-less HMB drives: the 2 GB DRAM and the controller's caching policy hold up well past the point where smaller drives have already dropped into a slow phase. The drive supports SLC pseudocaching dynamically across free space, so a half-full 2 TB still gets a generous cache. DirectStorage operates as expected on Windows; on macOS the drive enumerates as a standard NVMe device with full TRIM support.

## Endurance, TBW & Warranty

OWC backs the Aura Pro IV 2 TB with a five-year limited warranty and a 1,000 TBW endurance budget, equivalent to 250 TBW per 500 GB of capacity. PCWorld notes the TBW figure runs a bit above the consumer norm at this tier - flagship drives such as the WD Black SN770 2 TB rate at 1,200 TBW, the WD Black SN850X 2 TB at 2,400 TBW, the Samsung 990 Pro 2 TB at 1,200 TBW, and the Crucial T500 2 TB at 1,200 TBW. At a heavy 50 GB/day sustained write workload the Aura Pro IV's budget lasts approximately 55 years, and a typical desktop user writing 10-20 GB/day will not touch it inside the warranty window. OWC handles RMA directly through its MacSales support portal, which has historically been responsive for Mac-focused buyers; PC buyers should register the serial number at purchase to streamline a future RMA. OWC does not publish an explicit MTBF figure for the consumer Aura Pro IV.

## Pros and Cons

**Pros:**

- 7,400 MB/s rated sequential reads on PCIe 4.0
- 2 GB SK Hynix dedicated DRAM cache
- 176-layer Micron 3D TLC NAND
- Innogrit IG5236 controller alternative to Phison E18
- 5-year warranty with 1,000 TBW endurance
- Strong sustained write performance verified in real-world testing
**Cons:**

- 1,000 TBW lower than WD Black SN850X 2 TB at this capacity
- No included heatsink in retail box
- Consumer monitoring software less polished than Samsung or WD
- No hardware encryption support advertised
- Limited retail availability outside North America


## Verdict

The OWC Aura Pro IV 2 TB is the right pick for Mac creators who want a name-brand non-Phison flagship with first-party compatibility lists, and for PC builders who prefer the Innogrit IG5236 controller over the more common Phison E18. Buyers chasing the highest TBW should look at the WD Black SN850X 2 TB instead, and PS5 owners can save money with the Crucial T500 2 TB at similar real-world performance. Skip the Aura Pro IV if you want bundled consumer monitoring software in the style of Samsung Magician or WD Dashboard - OWC's tooling is more storage-engineer oriented. As a flagship PCIe 4.0 drive at 2 TB the Aura Pro IV holds its own against the Phison E18 fleet on sustained throughput and offers a reasonable five-year warranty.

## Frequently Asked Questions

### Is the OWC Aura Pro IV 2TB good for video editing?

Yes, it is well suited to video editing on Mac and PC. The Aura Pro IV 2 TB delivers 7,400 MB/s sequential reads and roughly 2.1 GB/s sustained writes across long single-file transfers, which is enough to handle 4K and 6K ProRes scratch workflows without dropping frames on a typical DaVinci Resolve, Premiere Pro, or Final Cut Pro project. The 2 TB capacity also holds enough cached media for medium-size projects, and the controller's larger over-provisioning slice keeps the SLC cache replenished between long writes. For multi-stream 8K or RAW work, plan an external Thunderbolt array as an offload target as well.

### Is the OWC Aura Pro IV 2TB compatible with the PS5?

Yes. The PS5 expansion slot requires a PCIe 4.0 NVMe SSD rated at 5,500 MB/s or higher sequential reads, dimensions within 110 x 25 x 11.25 mm including heatsink, and the M.2 2280 form factor. The Aura Pro IV 2 TB meets the bandwidth requirement comfortably at 7,400 MB/s and uses the correct 2280 form factor. OWC does not include a heatsink, so PS5 owners must pair the drive with a third-party heatsink that fits inside the 11.25 mm height budget. Sony does not list the Aura Pro IV on its formal compatibility page, but it satisfies all the published technical criteria.

### Does the OWC Aura Pro IV have a DRAM cache?

Yes. The Aura Pro IV uses dedicated SK Hynix DRAM scaled at 1 GB per terabyte of capacity, so the 2 TB carries a 2 GB DRAM cache, the 1 TB carries 1 GB, and the 500 GB carries 512 MB. Dedicated DRAM is a meaningful advantage on sustained random workloads compared to DRAM-less HMB drives like the WD Black SN770 - the mapping table sits on the SSD itself rather than borrowing system RAM. PCWorld's review and OWC's own product page both confirm the DRAM configuration.

### What is the TBW endurance of the OWC Aura Pro IV 2 TB?

OWC rates the 2 TB Aura Pro IV at 1,000 TBW over a five-year warranty. The TBW scales linearly across the line at 250 TBW per 500 GB of capacity. PCWorld notes that figure is slightly above the consumer norm at this tier; for comparison, the Samsung 990 Pro 2 TB rates at 1,200 TBW, the WD Black SN850X 2 TB at 2,400 TBW, and the Seagate FireCuda 530 2 TB at 2,550 TBW. At a heavy 50 GB/day sustained workload the Aura Pro IV's endurance lasts roughly 55 years, which exceeds the warranty by a wide margin.

### How does the OWC Aura Pro IV compare to the FireCuda 530?

The two drives share the same Innogrit IG5236 controller class and similar 176-layer TLC NAND, and PCWorld measured them as effectively tied on combined CrystalDiskMark sequential scores. The FireCuda 530 2 TB has a higher published TBW at 2,550 versus 1,000 for the Aura Pro IV, and Seagate's three-year Rescue data recovery service is bundled in. The Aura Pro IV counters with a five-year warranty and OWC's Mac-targeted utilities and compatibility lists. For Mac creators, the Aura Pro IV is the better-supported choice; for PC builders weighing TBW, the FireCuda 530 wins on endurance alone.

### Does the OWC Aura Pro IV need a heatsink?

Yes, in most desktop and console scenarios. The Innogrit IG5236 is a power-hungry eight-channel controller that produces enough heat under sustained workloads to throttle without active cooling. Desktop builders should fit the motherboard's bundled M.2 heatsink, and PS5 owners must add a third-party heatsink that fits the slot's 11.25 mm height budget. For Mac internal upgrades, the drive sits under the chassis with passive thermal contact, which is sufficient for typical creator workloads but can throttle during multi-hundred-gigabyte capture writes - plan thermal management accordingly.

### Is the OWC Aura Pro IV 2 TB worth it over the WD Black SN850X 2 TB?

Only for specific buyer profiles. The WD Black SN850X 2 TB rates higher on writes (6,600 vs 6,250 MB/s), much higher on TBW endurance (2,400 vs 1,000 TBW), and ships with WD Dashboard for consumer monitoring. The Aura Pro IV wins on Mac-targeted features, in-house OWC support, and the alternative-controller story for buyers who explicitly want to avoid the Phison E18 platform. If you are a Windows-only gamer, the SN850X is the more sensible pick; if you are a Mac creator or a PC builder who values OWC's ecosystem and Innogrit's design, the Aura Pro IV justifies its price.

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Last updated: 2026-05-23. Source: https://ssdrive.net/owc-aura-pro-iv-2-tb