EMACS Zippy R1S2-5300V4V Redundant Power Supply is the ideal choice for 2U QNAP NAS .
Its model number is R1S2-5300V4V, and it is a 2U-sized power supply. With its redundant design, this power supply ensures maximum uptime and reliability.
came out backup QNAP TS-809U-RP 2U NAS has less then 100 hours of use.