- Review -

04.03.2025 NikKTech.com

The fully modular PRIME TX-1600 Noctua Edition power supply unit by Seasonic is an 1.6KW PCIe 5.1 & ATX 3.1 compliant model that sports the 80 PLUS Titanium certification (94% efficiency at 50% load) and is equipped with two 12V-2X6 (600W) and six 6+2 pin PCIe power connectors. It also features a single powerful +12V rail (133.33A) capable of delivering 100% of the units’ total power output (1600W), peak power output of no less than 1746W (based on ATX 3.1 peak should now be up to around 3.49KW for up to 100ms - once again however this is not something I can test), full-bridge LLC converter with DC to DC design, Interleaved PFC, semi-passive fan control (fan spins after 50% load), high-quality Japanese capacitors certified for use up to 105 degrees Celsius and a full array of electrical protections including over-current (OCP), over-voltage (OVP), under-voltage (UVP), short-circuit (SCP), over-temperature (OTP) and over-power (OPP). What makes the PRIME TX-1600 Noctua Edition model stand out is of course the NF-A12x25 HS-PWM 120mm fan which is paired with a custom design highly optimized fan grill, a combination which always according to Seasonic and Noctua makes this model up to -10dBA quieter compared to the regular PRIME TX-1600 model. As for warranty the PRIME TX-1600 Noctua Edition is covered with a very generous 12-year limited one.

"There are 4 takeaways from today's review, first that by using the NF-A12x25 HS-PWM 120mm fan by Noctua the Seasonic PRIME TX-1600 is the only unit I've gotten my hands on that's really inaudible even while over 1KW load (still do remember that this is an 2400RPM fan so if you do manage to get near or even over 1600W noise levels will increase - during my tests it never surpassed 1000RPM and well, my dBA meter doesn't really record anything under 25-27dB), second that rail stability is nothing short of impressive (I doubt this will change even at 1600W load), third that build quality is pretty much superb and fourth that this is currently the only unit in the market that has the classic Noctua color theme (so you'll either love or hate it)." (Nik Kastrantas, NikKTech.com)