Silicon Power UD90 SP500GBP44UD9005 500 GB

Internal solid-state drive in M.2 2280 format, aimed at users who value high PCI-E 4.0 performance without overpaying for flagship solutions from Samsung, Kingston, and WD. Due to its affordable price and optimal capacity of 500 GB for most users, the drive can be used as the main system disk or additional storage for frequently used data. The heart of the SSD Silicon Power UD90 is the four-channel Phison E21T controller, known for its energy efficiency and balanced operation with QLC memory.

In tandem with 3D QLC NAND, it provides a sequential read speed of up to 5000 MB/s and write speed of up to 4800 MB/s—more than enough for comfortable work with large files, fast game loading, and high system responsiveness overall. Despite the model not being equipped with a DRAM buffer, the Phison controller uses HMB (Host Memory Buffer), ensuring stable operation even under prolonged load. The drive comes with a five-year manufacturer warranty, and the available rewrite resource is 300 TB. In addition to the 500 GB version, there are also variations available with memory capacities of 250 GB, 1 TB, 2 TB, and 4 TB.