The brand started selling the NucBox M5 Ultra worldwide, and it might be one of the most powerful small PCs you can buy right now. NucBox M5 Ultra - Hardware That Packs a PunchThe NucBox M5 Ultra comes with AMD’s Ryzen 7 7730U, an 8-core, 16-thread chip that can handle heavy workloads. You can upgrade it with up to 64GB of DDR4 RAM and add two M.2 NVMe drives, each up to 8TB. That means you can have a total of 16TB of storage inside this little box, which is impressive for something this size. Configurations for Different NeedsGMKtec sells three versions: a barebone model where you add your own RAM and storage, a 16GB RAM + 512GB SSD model, and a 32GB RAM + 1TB SSD model.