Synology Inc. FS200T NAS J4125 4GB DDR4 6x 2.5" bays

Compact six-bay NAS for small teams

The TerraMaster FS200T is a desktop network-attached storage device built around an Intel Celeron J4125 quad-core processor running at 2 GHz with 4 GB of DDR4 memory installed. It provides six 2.5-inch drive bays for SSD or HDD arrays and includes both a 1 GbE and a 2.5 GbE RJ-45 port for flexible network connectivity. Two USB 3.2 Gen 1 ports allow direct attachment of external storage or backup targets. This unit suits small offices or creative workgroups needing centralised file services in a quiet, space-efficient enclosure.

Thermals and power in daily operation

The system draws up to 65 W from a 100 V to 240 V AC supply at 50 or 60 Hz, reflecting the low thermal design power of the J4125 platform. Passive and low-speed active cooling keeps acoustic output minimal during typical file-serving, backup and light virtualisation workloads. Power consumption scales with drive count and activity, but the 65 W ceiling remains modest compared with larger rackmount alternatives. The compact 151 mm by 175 mm by 121 mm footprint allows placement on a shelf or desk without demanding dedicated ventilation space.

Expandability through memory and USB

Two SODIMM slots support up to 8 GB of DDR4, enabling a straightforward upgrade from the factory 4 GB for heavier multitasking or container workloads. The dual USB 3.2 Gen 1 ports add hot-plug expansion for flash drives, external RAID enclosures or UPS signalling without consuming drive bays. The 2.5 GbE port lifts LAN throughput above the traditional gigabit bottleneck when paired with compatible switches or clients. Buyers who need 3.5-inch drive support, additional Ethernet ports or PCIe expansion should consider larger chassis models.