For systems where storage capacity is no longer an afterthought but a critical constraint, Kioxia’s latest addition to the Exceria G3 line—now available in a 4TB configuration—offers a compelling balance of density and performance. The drive extends the series’ existing 1TB and 2TB options, delivering sequential reads up to 10 GB/s and writes up to 9.6 GB/s, while keeping power draw under 6.4W without active cooling.
The 4TB variant retains the Phison E31T controller paired with Kioxia’s 218-layer BiCS8 QLC NAND, a combination that has already proven its efficiency in smaller capacities. With write endurance rated at 2,400 TBW and a 5-year warranty, it positions itself as a high-capacity workhorse for workloads that demand both space and longevity.
Key specs
- Capacity: 4TB (joins existing 1TB/2TB variants)
- Interface: PCIe 5.0 x4, NVMe 1.5
- Controller: Phison E31T (DRAMless)
- NAND: Kioxia 218-layer BiCS8 QLC
- Performance:
- Sequential read: up to 10 GB/s
- Sequential write: up to 9.6 GB/s
- 4K random IOPS: 1.45M reads/writes
- Power: 6.4W (no cooling required)
- Endurance: 2,400 TBW
- Warranty: 5 years
This isn’t just about raw capacity—it’s about redefining what mid-range storage can deliver. The move to QLC NAND with PCIe 5.0 support aligns with broader industry shifts toward denser, more efficient architectures, but without sacrificing the speed that Gen 5 brings. For enthusiasts and power users, this means finally having a high-capacity drive that doesn’t force trade-offs between size and performance.
Yet, the lack of pricing details leaves unanswered whether this will truly challenge higher-tier options or remain a niche choice for budget-conscious builders. If Kioxia can match capacity with affordability, it could redefine expectations for mid-range SSDs in 2026 and beyond.
