Kioxia unveils PCIe 6.0 GP1 SSD with over 20M IOPS

Kioxia has shown an upgraded GP-series SSD on PCIe 6.0 that exceeds 20 million random-read IOPS on 512-byte blocks, roughly doubling the GP1 launched in August 2026. The gain comes from third-gen XL-FLASH, which triples read speed and lifts write speed by about 150%. Kioxia also exhibited the LD4 QLC drive in 15.36 TB and 30.72 TB capacities.

• GP1 tops 20 million IOPS on random 512-byte reads
• Third-gen XL-FLASH triples read speed, writes up ~150%
• LD4 QLC drive: 15.36 TB and 30.72 TB, PCIe 5, scales to 122.88 TB
• Energy per operation is expected to rise with the new XL-FLASH