Specifications:

Hardware:
» CPU: 1.2GHz, 16bit@DDR800
» RAM Size: 128MB
» Internal HDD: 4X 2.5” SATA/SSD
» External HDD Interface: 2X USB ports, 1X eSATA port
» Size: 120mm X 105mm X 142mm
» Weight: 0.66kg
» LAN: 1X Gigabit
» Fan: 1X (60mm X 60mm)
» Noise Level: 24dB(A)
» Power Recovery
» AC Input Power Voltage: 100V to 240V
» Power Frequency: 50Hz to 60Hz, Single Phase
» Max HDD Support (Internal HDD): 500GB
» Max Supported IP Camera: 5
» Operating Temperature: 5°C to 35°C (40°F to 95°F)
» Storage Temperature: -10°C to 70°C (15°F to 155°F)
» Relative Humidity: 5% to 95% RH
» Max Operating Altitude: 10,000 feet

Power Consumption:
» 19W (Access); 12W (Hibernation)

Security:
» FTP over SSL/TLS (explicit)
» FTP Auto-Block
» Encrypted Network Backup
» Encrypted rsync
» HTTPS Connection

File System:
» EXT3
» FAT (External Disk Only)
» NTFS (External Disk Read Only)

File Sharing:
» Max User Account: 1,024
» Max Group: 128
» Max Shared Folder: 256
» Max Concurrent Connections (SAMBA, FTP, AFP): 64

Utilities:
» Synology Assistant
» Synology Data Replicator 3
» Synology Download Redirector
» Add Printer Wizard

Applications:
» Surveillance Station 2
» Photo Station 3
» File Station 2
» Audio Station
» Web Station
» PHP/MySQL
» Download Station 2
» iTunes Server

UPnP Multimedia Service Support:
» Sony PS3, Microsoft Xbox360
» Audio Format: AAC, FLAC, M4A, MP3, Ogg Vorbis, WAV, WMA, WMA VBR, WMA PRO, WMA Lossless
» Video Format: ASF, AVI, DAT, DivX, MP4, MPEG1, MPEG2, MPEG4, VOB, WMV, XviD
» Image Format: BMP, JPG (jpe, jpeg), GIF, ICO, PNG, PSD, TIF (tiff ), UFO
» Playlist Format: WPL, M3U
» Subtitle: srt, psb, smi, ass, ssa, sub, idx, ifo

iTunes Server Support:
» Audio Format: MP3, M4A, M4P, WAV(4), AIF(4)
» Playlist Format: M3U, WPL

Audio Station Support:
» USB Mode: (Audio) AAC, FLAC, M4A, MP3, Ogg Vorbis, WMA, WMA VBR (Playlist) M3U, WPL (Internet Radio) SHOUTcast, Radioio
» Streaming Mode: (Audio) MP3 (Playlist) M3U, WPL

Photo Station 3 Support:
» Video Format: ASF, AVI, MPEG1, MPEG4, WMV, XviD, DivX, FLV, DAT(5), MP4(5), MPEG2(5), RM(5), RMVB(5), VOB(5)
» Image Format: BMP, JPG (jpe, jpeg), GIF

RAID Management:
» Volume Type: Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 5+Spare, RAID 6
» RAID Change: Basic to RAID 1, RAID 1 to RAID 5, RAID 5 to RAID 5+Spare
» Expand with Larger Hard Drives: RAID 1, RAID 5, RAID 5+Spare, RAID 6 » Expand with More Hard Drive: RAID 5 from 3 to 4 HDDs

Backup Solutions:
» Network Backup
» Local Backup
» Desktop Backup (using Synology Data Replicator 3)
» USBCopy
» 3rd-Party Backup Support

Supported Clients:
» Windows 2000 onward
» Mac OS X 10.3 onward
» Linux

Printer Support:
» Max Printer #: 2
» Supported Protocols: LPR, CIFS, AppleTalk

There are tons of things to consider regarding this product, and this is just a partial listing. As mentioned earlier, for complete and current details please visit the official product page on the Synology website.