CFD Gaming PG5NFZ 4TB PCIe 5.0 NVMe SSD Specifications
CFD Gaming PG5NFZ 4TB pairs a Phison E26 controller with Micron 3D TLC NAND and active Phnix cooling to deliver PCIe Gen5 reads of 9,500 MB/s with writes of 8,500 MB/s.
The CFD Gaming PG5NFZ 4TB is a PCIe 5.0 x4 NVMe SSD built on the Phison PS5026-E26 controller platform with Micron 3D TLC NAND flash using B58R dies. Sequential read speeds reach 9,500 MB/s and writes hit 8,500 MB/s, placing it in the first wave of consumer Gen5 storage solutions.
The defining feature of the PG5NFZ is the integrated Phnix active cooling system, which combines a 20mm aluminum heatsink with a high-speed fan to manage the substantial thermal output of PCIe 5.0 operation. Early Gen5 SSDs without active cooling frequently throttle under sustained loads, but the Phnix solution maintains consistent performance during extended file transfers and heavy workloads.
Random 4K performance reaches 1.5 million IOPS for reads and 1.25 million IOPS for writes, leveraging the E26 controller improved parallelism and NVMe 2.0 support. A DDR4 DRAM cache handles the NAND mapping table for efficient random access patterns.
CFD launched the PG5NFZ lineup in late 2022 with the 4TB variant joining 1TB and other capacity options. The drive uses the M.2 2280-D2-M form factor, which means it is double-sided. The 4TB capacity suits users who need large storage pools for video editing, game libraries, or datasets that benefit from Gen5 bandwidth.
✅ Storage Comparisons:
🚀 Performance and benchmarks
The 4TB PG5NFZ delivers 9,500 MB/s sequential read and 8,500 MB/s write throughput over its PCIe 5.0 x4 connection. While later E26-based drives push toward 14,000 MB/s reads, the PG5NFZ still represents a substantial generational improvement over PCIe 4.0 drives capped around 7,400 MB/s.
CFD PG5NFZ 4 TB vs M.2 5.0 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 5.0 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- ADATA Nighthawk Prototype 1 TB: 14,000 MB/s read, 12,000 MB/s write
- ADATA Nighthawk Prototype 2 TB: 14,000 MB/s read, 12,000 MB/s write
- ADATA Nighthawk Prototype 4 TB: 14,000 MB/s read, 12,000 MB/s write
- ADATA Nighthawk Prototype 8 TB: 14,000 MB/s read, 12,000 MB/s write
- CFD PG5NFZ 4 TB (this drive): 9,500 MB/s read, 8,500 MB/s write
Random 4K performance of 1.5 million read and 1.25 million write IOPS translates to excellent desktop responsiveness, quick application launches, and fast file system operations. Under sustained heavy writes the dynamic SLC cache will eventually fill, after which speeds drop to the native TLC write pace of the Micron B58R NAND.
The Phnix active cooler is the critical performance enabler for this drive. Without active cooling, Phison E26 controller temperatures can exceed 80 degrees Celsius within minutes of sustained activity, triggering thermal throttling. The integrated fan keeps the controller and NAND below critical temperatures, allowing the 4TB PG5NFZ to maintain peak speeds for extended durations. The 20mm height profile is the trade-off, potentially limiting compatibility with compact Mini-ITX cases or GPU slots with tight M.2 clearance.
Gaming and content creation workloads benefit significantly from the 4TB capacity and Gen5 bandwidth. DirectStorage-enabled games on Windows load assets faster, and video editors working with 4K or 8K codecs experience smooth timeline scrubbing and faster render exports.
🖥️ Endurance and warranty
CFD Gaming provides warranty coverage for the PG5NFZ series under their standard SSD warranty terms, primarily serving the Japanese domestic market. Premium PCIe 5.0 SSDs typically carry three- to five-year limited warranties with TBW endurance limits scaled to capacity. The 4TB PG5NFZ likely offers endurance in the 1,200 to 1,600 TBW range based on similar Phison E26 platform drives with comparable capacity ratings. CFD technical support is available through their website and authorized distributors. Warranty claims require proof of purchase from an authorized retailer. International buyers should confirm warranty coverage with their local distributor before purchasing, as CFD products are primarily distributed within Japan. The active cooling fan is a mechanical component rated for tens of thousands of hours of continuous operation.
📊 Specs
| Category | Value |
|---|---|
| Capacity [?] | 4 TB |
| Interface [?] | M.2 5.0 |
| Controller [?] | Phison PS5026-E26 |
| Memory type [?] | Micron 3d TLC |
| DRAM [?] | DDR4 |
| Read speed (MB/s) [?] | 9500 |
| Write speed (MB/s) [?] | 8500 |
| Read IOPS [?] | 1500000 |
| Write IOPS [?] | 1250000 |
| Endurance (TBW) [?] | n/a |
| MTBF (million hours) [?] | n/a |
| Warranty (years) [?] | n/a |
Conclusion
The CFD Gaming PG5NFZ 4TB was among the first consumer PCIe 5.0 SSDs available at retail, combining the Phison PS5026-E26 controller, Micron 3D TLC NAND, and an innovative active Phnix cooling solution. The 9,500 MB/s read and 8,500 MB/s write speeds deliver a meaningful generational upgrade over Gen4 storage, and the integrated fan addresses the thermal throttling that plagues passive Gen5 drives.
The 4TB capacity is well suited for enthusiasts building high-end desktop systems where the 20mm cooler clearance is not an issue. Content creators who work with large video files and power users with extensive game libraries will appreciate both the capacity and the sustained Gen5 bandwidth. If you want PCIe 5.0 storage with proven active cooling, the PG5NFZ remains a solid option.
+ Pros
- 9,500 MB/s reads provide generational PCIe 5.0 improvement
- Active Phnix cooler with fan prevents thermal throttling
- Phison E26 controller with 1.5 million read IOPS
- Micron 3D TLC NAND B58R for reliable endurance
- 4TB capacity handles demanding content creation workloads
- Cons
- 20mm cooler height limits compatibility with compact builds
- Double-sided PCB not suitable for thin laptops
- Active fan adds a mechanical wear component over time
- CFD primarily sold in Japan, limited international support
🛒 Buy this or similar SSD Storage:
✨ Video Review
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