new rail kit for new 1U & 2U NAS: TVS-471U, 1253U, etc
Dimension (L × W × H): 738 × 100 × 70 (mm)
Weight: 2.48 (kg)
Note: This rail kit is designed for racks with 25-inch mounting depth. You may need to reserve some space when installing and adjusting the rail kit for racks with 18-inch mounting depth. For installation details, click https://qnap.to/rail-b02.