The Asgard AN4 is a solid-state drive in the M.2 2280 form factor, launched in 2021. It is only available in the 1 TB capacity listed on this page. With the rest of the system, the Asgard AN4 interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the IG5236 (Rainier) from InnoGrit, a DRAM cache chip is available. Asgard has installed 128-layer TLC NAND flash on the AN4, the flash chips are made by YMTC. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are soaked up more quickly. The cache is sized at 341 GB, once it is full, writes complete at 1440 MB/s. Copying data out of the SLC cache (folding) completes at 793 MB/s. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The AN4 is rated for sequential read speeds of up to 7,500 MB/s and 5,500 MB/s write.
The SSD's price at launch is unknown. The warranty length is set to five years, which is an excellent warranty period. Asgard guarantees an endurance rating of 700 TBW, a typical value for consumer SSDs.