Packaging

The Drive

The drive conforms to the dimensions set forth by the 2.5" form factor. It is made out of plastic and only 7 mm thick, which makes it compatible with Intel's Ultrabook specification.


The Kioxia Exceria SATA uses the SATA 6 Gbps interface. It is compatible with any older SATA standard, but will in such a case work at reduced performance.


On the PCB, you'll find the controller and four flash chips, a DRAM cache chip is not available.


The Exceria uses a screw-less clamshell construction with a thermal pad installed to keep the controller cool.

Chip Component Analysis

The Toshiba TC58NC1010GSB controller is actually a rebranded Phison S11, which has a single core and two NAND flash channels. It's fabricated on a 40 nm process and has support for pseudo-SLC caching. Kioxia did not confirm or deny whether this is a Phison controller.


The four flash chips are Toshiba 64-layer 3D TLC NAND. Each chip has a capacity of 256 GB.