The Transcend 240s is a solid-state drive in the M.2 2280 form factor, launched in 2021. It is available in capacities ranging from 500 GB to 1 TB. This page reports specifications for the 1 TB variant. With the rest of the system, the Transcend 240s interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the SM2267 from Silicon Motion, a DRAM cache chip is available. Transcend has installed 96-layer TLC NAND flash on the 240s, the flash chips are made by Micron. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are handled more quickly. The cache is sized at 190 GB. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The 240s is rated for sequential read speeds of up to 3,800 MB/s and 3,200 MB/s write; random IO reaches 370K IOPS for read and 560K for writes.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Transcend guarantees an endurance rating of 1700 TBW, a good value.