Asustor Nimbustor 2 Gen2 AS5402T vs UGREEN NASync DH4300 Plus

Pick the Asustor AS5402T if you want a fast, expandable two-bay box for media streaming and tinkering: four NVMe slots, dual 2.5GbE with SMB Multichannel, 10 Gbps USB and 4K HDMI decoding give it more headroom per bay. Pick the UGREEN DH4300 Plus if you mainly want room to grow: four bays, 8GB of RAM out of the box and simpler setup win for first-time owners storing a family archive. Owners of the UGREEN praise easy setup and fast transfers but note some networking research is needed; the Asustor's ADM software is capable but has a smaller app catalog than Synology's.

• Choose the Asustor AS5402T if you want NVMe caching, dual 2.5GbE and 4K transcoding in a compact two-bay unit and don't mind adding RAM yourself.
• Choose the UGREEN DH4300 Plus if you want four bays, 8GB of memory preinstalled and the easiest first-time setup for photos, files and TV playback.