CPU

CPU Model

INTEL Atom CE5335

CPU Frequency

Dual Core 1.6 GHz

Floating Point

Hardware Transcoding Engine

H.264 (AVC), MPEG-4 Part 2, MPEG-2, VC-1

Memory

System Memory

1 GB DDR3

Storage

Drive Bay(s)

4

Compatible Drive Type

• 3.5″ SATA III / SATA II HDD
• 2.5″ SATA III / SATA II HDD
• 2.5″ SATA III / SATA II SSD

Maximum Internal Raw Capacity

32 TB (8 TB HDD X 4) (Capacity may vary by RAID types) 

Hot Swappable Drive

External Ports

USB 2.0 Port

3

USB 3.0 Port

2

File System

Internal Drives

EXT4

External Drives

• EXT4
• EXT3
• FAT
• NTFS
• HFS+

Appearance

Size (Height X Width X Depth)

165 mm X 203 mm X 233.2 mm

Weight

2.03 kg

Others

RJ-45 1GbE LAN Port

1

Wake on LAN/WAN

System Fan

92 mm X 92 mm X 2 pcs

Fan Speed Mode

• Cool Mode
• Quiet Mode

Wireless Support (dongle)

Noise Level

20.0 dB(A)

Power Recovery

Scheduled Power On/Off

Power Supply Unit / Adapter

90W

AC Input Power Voltage

100V to 240V AC

Power Frequency

50/60 HZ, Single Phase

Power Consumption*

27.33 W (Access)
16.84 W (HDD Hibernation)

British Thermal Unit

93.25 BTU/hr (Access)
57.46 BTU/hr (HDD Hibernation)

Environment Temperature

Operating Temperature

5°C to 35°C (40°F to 95°F)

Storage Temperature

-20°C to 60°C (-5°F to 140°F)

Relative Humidity

5% to 95% RH

Certification

• FCC Class B
• CE Class B
• BSMI Class B

Warranty

2 Years

Notes

• Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
• Support for Wake on WAN needs switch and routers which recognize Magic Packet.
• 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%

DSM Specifications

Storage Management

Maximum Single Volume Size

16 TB

Maximum Internal Volume Number

256

Maximum iSCSI Target Number

10

Maximum iSCSI LUN

10

Supported RAID Type

• Synology Hybrid RAID
• Basic
• JBOD
• RAID 0
• RAID 1
• RAID 5
• RAID 6
• RAID 10

RAID Migration

• Basic to RAID 1
• Basic to RAID 5
• RAID 1 to RAID 5
• RAID 5 to RAID 6

Volume Expansion with Larger HDDs

• Synology Hybrid RAID
• RAID 1
• RAID 5
• RAID 6

Volume Expansion by Adding a HDD

• Synology Hybrid RAID
• RAID 5
• JBOD

Global Hot Spare Supported RAID Type

• Synology Hybrid RAID
• RAID 1
• RAID 5

File Sharing Capacity

Maximum User Accounts

2048

Maximum Groups

256

Maximum Shared Folder

256

Maximum Shared Folder Sync Tasks

4

Maximum Concurrent CIFS/AFP/FTP Connections

256

Windows Access Control List (ACL) Integration

NFS Kerberos Authentication

Log Center

Syslog Events per Second

400

Notes

Performance figures could vary on different environments.

Add-on Packages

Antivirus Essential

Antivirus by McAfee (Trial)

Audio Station

Cloud Station

Maximum Concurrent File Transfers

256

Cloud Sync

Directory Server

DNS Server

Download Station

Maximum Concurrent Download Tasks

50

Glacier Backup

HiDrive Backup

iTunes Server

Java Manager

Mail Server

Mail Station

Media Server

DLNA Certification

Note Station

Photo Station

RADIUS Server

Surveillance Station

Maximum IP cam (Licenses required)

15 (including 2 Free License)

Total FPS (H.264)*

450 FPS @ 720p (1280×800)
150 FPS @ 1080p (1920×1080)
100 FPS @ 3M (2048×1536)
80 FPS @ 5M (2591×1944)

Total FPS (MJPEG)*

210 FPS @ 720p (1280×800)
50 FPS @ 1080p (1920×1080)
40 FPS @ 3M (2048×1536)
30 FPS @ 5M (2591×1944)

Time Backup

Maximum Task Number

4

Video Station

Video Transcoding

Group 1

VPN Server

Maximum Connections

15

Notes

Surveillance Station throughput is tested with Axis P1347 (H.264@1280×720@30FPS), using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera. Recording video is saved every 5 minutes with the limit of archive folder up to 1GB.

Environment & Packaging

Environment

RoHS Compliant

Packaging Content

• Main Unit X 1
• Welcome Note X 1
• Accessory Pack X 1
• AC Power Adapter X 1
• AC Power Cord X 1
• RJ-45 LAN Cable X 1

Optional Accessories

• Remote
• Camera License Pack
• VS240HD