The Synology NAS Expansion Unit RX6025sas is a 4U storage expansion unit compatible with HD6500 servers. It supports up to 60 2.5″ and 3.5″ drives with SAS and SATA interfaces, as well as hot-swap functionality.

• Dual power supplies
• 4 fans with an 80 mm diameter
• Noise level: 61.7 dB
• Dimensions: 176 × 438 × 985 mm
• Weight: 33.9 kg
• Power supply: AC, 50/60 Hz, 200–240 V output
• Maximum power consumption: 1300 W
• Operating temperature: 0–35 °C
• Operating relative humidity: 5–95%
• Storage temperature: -20–60 °C
• Certifications: BSMI, CE, EAC, FCC, KC, RCM, RoHS, UKCA, UL, VCCI