Lenovo M75q Gen 5 Micro Desktop PC Windows 11 16GB DDR5 RAM, 256GB M.2 SSD WiFi
Upgrade up to 1TB available at £10 per 128GB. Gen 4 slot can support up to 7500MB/s speed, twice as fast as Gen 3 with 3500MB/s. The PC manages to perform so good due to inclusion of Gen4 SSD and DDR5 RAM.