Union Memory AE631: PCIe Gen5 QLC SSD Claims TLC Speeds

Union Memory introduced the AE631, its first consumer-grade solid state drive built on PCIe Gen5 QLC technology. This launch matters because QLC NAND typically struggles with speed and latency, but the company claims this new drive matches the performance of faster PCIe Gen4 TLC models. Buyers looking for high-capacity storage that does not sacrifice responsiveness should watch this release closely.

Union Memory introduces its first consumer-grade PCIe Gen5 QLC SSD, the AE631, claiming performance equivalent to faster TLC drives while offering capacities up to 4TB in M.2 2280 and 2242 form factors.

The AE631 is available in M.2 2280 and 2242 form factors with capacities reaching 4TB. Union Memory positions this drive as a direct upgrade path for users upgrading from older Gen4 QLC hardware. The architecture aims to bridge the gap between cost-effective QLC pricing and the performance expectations of modern TLC drives.

Specifications

• Interface: PCIe Gen5
• NAND Type: QLC
• Form Factor: M.2 2280 / 2242
• Max Capacity: 4TB
• Sequential Read Improvement: 50%

The company reports a 50% increase in sequential read speeds and a 60% boost in sequential write speeds compared to its previous generation. Random 4K read performance improves by more than 10%, while random 4K write performance jumps by over 20%. These percentage gains apply to the transition from their prior Gen4 QLC lineup to this new Gen5 standard.

Union Memory states that the drive maintains sustained throughput without decay under NVMe multi-queue depth workloads. It also claims to control 4K random read latency during typical local token processing loads. The SSD natively supports power-saving features including ASPM L1.2, APST, and Modern Standby to reduce idle power consumption.

We looked at Nextorage G Series EEA SSD Announced earlier while tracking Union memory launches. The AE631 currently lacks listed pricing or specific GB/s speed metrics in the announcement. The drive represents a technical step toward making QLC viable for mainstream consumer applications.