AMD-based ultra-compact form-factor (UCFF) systems are slowly gaining market acceptance, with the Zen architecture slowly catching up with Intel on both the performance as well as power consumption front. AMDs latest and greatest has been reserved for the high-end desktop market, with the parts meant for low-power / compact systems appearing a few quarters later. Zen 3-based desktop CPUs were introduced recently. However, it is only now that Zen 2-based parts with 12-25W TDP (Renoir APUs) have started to appear in compact desktop systems. ASRock Industrial launched the Ryzen 4000U-based 4X4 BOX-4000 series in September. Read on for a review of their flagship model - the 4X4 BOX-4800U.