ADATA Project Nighthawk 4TB PCIe 5.0 NVMe Prototype Specifications

Posted on May 17, 2026 by Raymond Chen

ADATA Project Nighthawk is a prototype PCIe Gen5 NVMe SSD built around the Silicon Motion SM2508 controller, delivering 14,000 MB/s reads and 12,000 MB/s writes in a 4TB capacity configuration.

ADATA Project Nighthawk 4TB PCIe 5.0 NVMe Prototype Specifications

ADATA Project Nighthawk represents the company push into PCIe 5.0 storage, using the Silicon Motion SM2508 controller to achieve next-generation sequential throughput. The 4TB model targets 14,000 MB/s read and 12,000 MB/s write speeds, roughly double what current PCIe Gen4 flagship drives deliver.

The SM2508 is a dedicated PCIe 5.0 x4 NVMe controller designed for the increased bandwidth and thermal demands of Gen5 storage. At Computex 2023, ADATA showcased several prototype SSDs on this controller platform, though final retail specifications for NAND type, DRAM configuration, and endurance ratings were not disclosed.

PCIe 5.0 doubles per-lane bandwidth to 4 GB/s, giving a theoretical 16 GB/s across four lanes. The Nighthawk 4TB targets about 87 percent of that ceiling for reads, accounting for protocol overhead and error correction. The 12,000 MB/s write speed reflects the practical limits of the NAND and controller combination.

The 4TB capacity variant would appeal to content creators and enthusiasts who need maximum storage for large video projects, game libraries, and datasets. ADATA has not confirmed whether Project Nighthawk will ship as a retail product or remain a technology demonstration, but it signals the company intent to compete in the premium PCIe 5.0 segment.

🚀 Performance and benchmarks

The 4TB Nighthawk prototype targets 14,000 MB/s sequential read and 12,000 MB/s write throughput over PCIe 5.0 x4. These figures represent a generational leap over current Gen4 drives, which max out around 7,400 MB/s read and 6,800 MB/s write.

Performance comparison

ADATA Nighthawk Prototype 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 4 TB (this drive): 14,000 MB/s read, 12,000 MB/s write
  • 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 8 TB: 14,000 MB/s read, 12,000 MB/s write
  • ADATA Blackbird Prototype 1 TB: 14,000 MB/s read, 12,000 MB/s write

Random 4K IOPS have not been disclosed for the prototype. The SM2508 controller is designed to handle the increased queue depths and parallelism that PCIe 5.0 enables. Early SM2508-based drives from other manufacturers suggest random read IOPS in the 1.2 to 1.5 million range and write IOPS around 1 to 1.3 million for competitive implementations.

Thermal management remains the primary challenge for PCIe 5.0 SSDs. The SM2508 controller and doubled data throughput generate significantly more heat than Gen4 drives, making robust cooling essential to sustain peak speeds. ADATA Project NeonStorm, a companion Gen5 prototype, uses an active cooling fan and aluminum heatsink to address this concern.

🖥️ Endurance and warranty

As a prototype product, ADATA Project Nighthawk has no confirmed warranty terms, pricing, or availability. ADATA typically offers three- to five-year warranties on its retail XPG SSD lineup, with TBW endurance ratings scaled by capacity. If a retail version launches, expect warranty coverage consistent with ADATA premium Gen4 products, which usually carry five-year limited warranties. The prototype designation means specifications may change before any commercial release, and some prototypes shown at trade shows never reach retail shoppers. For the most current information on ADATA SSD warranty policies, check the official ADATA website or contact their technical support team directly.

📊 Specs

Category Value
Capacity [?] 4 TB
Interface [?] M.2 5.0
Controller [?] SiliconMotion SM2508
Memory type [?] n/a
DRAM [?] n/a
Read speed (MB/s) [?] 14000
Write speed (MB/s) [?] 12000
Read IOPS [?] n/a
Write IOPS [?] n/a
Endurance (TBW) [?] n/a
MTBF (million hours) [?] n/a
Warranty (years) [?] n/a

Conclusion

ADATA Project Nighthawk in 4TB form demonstrates what PCIe 5.0 storage can achieve, with the Silicon Motion SM2508 controller enabling 14,000 MB/s reads and 12,000 MB/s writes. These speeds double current Gen4 flagship performance and point toward a future where storage bandwidth is essentially unlimited for consumer workloads.

The prototype status means critical details like NAND type, DRAM configuration, endurance ratings, and pricing remain unconfirmed. Thermal management will be essential, as PCIe 5.0 drives run significantly hotter than Gen4 predecessors. For now, Project Nighthawk serves as a technology showcase rather than a purchasable product, but if ADATA brings it to market it could be a strong option for enthusiasts building next-generation systems.

+ Pros

  • 14,000 MB/s reads near PCIe 5.0 x4 theoretical maximum
  • 12,000 MB/s writes double current Gen4 flagship speeds
  • Silicon Motion SM2508 controller built for PCIe 5.0 demands
  • 4TB capacity handles large workloads comfortably
  • Shows ADATA commitment to next-gen storage development

- Cons

  • Prototype status with no confirmed retail availability
  • NAND type and DRAM configuration undisclosed
  • No endurance or TBW rating published
  • PCIe 5.0 thermal management requires robust cooling

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✨ Video Review

First super fast PCIe 5.0 SSDs teased ahead of CES

⁉️ FAQ

No, it remains a prototype shown at trade shows. ADATA has not announced a retail release date or pricing.

The Silicon Motion SM2508, a PCIe 5.0 x4 NVMe controller designed for next-generation SSD bandwidth and thermal requirements.

It targets 14,000 MB/s sequential read and 12,000 MB/s sequential write throughput over PCIe 5.0 x4, about double current Gen4 speeds.

Yes, PCIe 5.0 M.2 slots are found on Intel Z790 and AMD X670 chipset motherboards. Older boards will run the drive at Gen4 speeds.

ADATA has not disclosed the specific NAND type. The prototype announcement focused on controller choice and speed targets.

Both are PCIe 5.0 prototypes using the SM2508 controller. NeonStorm features active cooling with a fan and heatsink, while Nighthawk cooling details have not been specified.
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