As previewed at CES, OCZ has released an update to their budget-oriented Trion 100 SATA SSD. The Trion 150 switches from parent company Toshibas A19nm TLC to their 15nm TLC, the densest planar NAND on the market. The transition to 15nm NAND has been slow for Toshiba and SanDisk, and the release of the Trion 150 signals that the 15nm TLC is finally ready to compete in the most cost-sensitive market segment. This is also probably the end of the road for Toshibas planar NAND and the Trion 150 will probably be the cheapest drive from Toshiba or OCZ until their 3D NAND ships, unless they introduce a drive with a DRAM-less controller.

The specifications for the Trion 150 are otherwise unchanged from the Trion 100, but the press releases have mentioned some improvements in sustained performance. Supporting the 15nm NAND required at least some firmware tweaks and its possible that some performance optimizations were introduced as well. Its also possible that the Trion 150 adopts more overprovisioning or larger SLC-mode caches.