Hardware Specifications Applied Models •DS1817+ •DS1517+ Storage Drive Bays 5 Compatible Drive Type* (See all supported drives) •3.5" SATA HDD •2.5" SATA HDD •2.5" SATA SSD Maximum Internal Raw Capacity 50 TB (10 TB HDD x 5) (Capacity may vary by RAID types) Hot Swappable Drive  RAID Management through Synology DSM  External Ports eSATA port 1 Appearance Size (Height x Width x Depth) 157 mm x 248 mm x 233 mm Weight 3.91 kg Power Power Recovery Synchronized with the Synology DiskStation Power Supply Unit / Adapter 200W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption* 29.9 W (Access) 2.4 W (HDD Hibernation) British Thermal Unit 102.02 BTU/hr (Access) 8.19 BTU/hr (HDD Hibernation) Temperature Operating Temperature 5°C to 40°C (40°F to 104°F) Storage Temperature -10°C to 70°C (15°F to 155°F) Relative Humidity 5% to 95% RH Others System Fan 80 mm x 80 mm x 2 pcs Easy Replacement System Fan  Noise Level* 21.5 dB(A) Note Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Certification •FCC Class B •CE Class B •BSMI Class B Warranty 3 Years Applicable Extended Warranty EW201 - 2 Year Extension Environment & Packaging Environment RoHS Compliant Packaging Content •Main Unit X 1 •Accessory Pack X 1 •AC Power Cord X 1 •Expansion Cable: eSATA X 1 •Quick Installation Guide X 1