Don't miss out on our latest stories. Add PCMag as a preferred source on Google.It’s not a consumer desktop, but Nvidia’s foray into an AI developer-focused mini PC is finally ready to launch. After starting preorders earlier this year, Nvidia will begin selling the DGX Spark on Wednesday, Oct. 15, through Nvidia.com and select third-party retailers.The 2.6-pound product looks an awful lot like a mini PC, but it’s more of an AI training workhorse than a general-purpose computer. Instead of Windo...