The Samsung PM9C1a is a solid-state drive in the M.2 2230 form factor, launched in January 2023. It is only available in the 1 TB capacity listed on this page. With the rest of the system, the Samsung PM9C1a interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the Piccolo (S4LY022) from Samsung, a DRAM cache is not available. Samsung has installed 176-layer TLC NAND flash on the PM9C1a, the flash chips are made by Samsung. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The PM9C1a is rated for sequential read speeds of up to 6,000 MB/s and 5,600 MB/s write; random IOPS reach up to 900K for reads and 1000K for writes.
The SSD's price at launch is unknown. The TBW rating for the Samsung PM9C1a 1 TB is unknown, too.