QNAP PWR-PSU-300W-DT02

"PSU pro modely: TS-1273U-RP, TS-877XU-RP, TS-883XU-RP, TS-1277XU-RP, TS-1283XU-RP, TVS-872XU-RP, TVS-1272XU-RP 300W single power supply for select rackmount NAS. Redundant power supply should be equipped with 2 units. Dimension (L × W × H): 100 × 308 × 133 (mm) Weight: 0.76 (kg) Note: For safety information and operating instructions, please refer to the documentation of your original QNAP product."