Expansion Unit RX1222sas Features: Intuitive Installation Add up to 12 additional 3.5"/2.5" SAS/SATA drives in a 2U enclosure with minimal setup and disruption Simple Configuration Start creating new volumes within minutes thanks to Synology DSM’s unified tools Ready for Synology Drives Achieve unmatched integration and reliability with Synology SATA and SAS drives Long-Term Support Backed by Synology’s 5-year limited warranty Specifications: Applied Models Supports creating volumes across different units SA series:SA3600, SA3400 Storage Drive Bays 12 Compatible Drive Type 3.5" SAS HDD 3.5" SATA HDD 2.5" SATA SSD Maximum Internal Raw Capacity 192 TB (16 TB drive x 12) (Capacity may vary by RAID types) Hot Swappable Drive Yes RAID Management through Synology DSM Yes External Ports SAS IN-port 1 SAS OUT-port 1 Appearance Size (Height x Width x Depth) 88 mm x 430.5 mm x 692 mm Size (Height x Width x Depth) (with server ears) 88 mm x 482 mm x 724 mm Weight 13.5 kg Rack Installation Support 4-post 19" rack Power Power Supply Unit / Adapter 500 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 194.4 W (Access), 82.56 W (HDD Hibernation) British Thermal Unit 663.48 BTU/hr (Access), 281.77 BTU/hr (HDD Hibernation) Redundant Power Supply (for RP model) Yes Temperature Operating Temperature 0°C to 35°C (32°F to 95°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Others System Fan 80 mm x 80 mm x 4 pcs Easy Replacement System Fan Yes Noise Level 54.5 dB(A) Certification FCC CE BSMI UKCA EAC VCCI RCM KC Warranty 5 Years Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Expansion Cable: Mini-SAS HD X 2 Quick Installation Guide X 1