Product Features:

 

Budget-friendly NAS Server for Small Office, Workgroups and Home Use

 

Elegant ID design with solid 2.5mm aluminium for better heat dissipation

 

Dimensions: ca. 17 x 9 x 22.5 cm = 3.4 litres

 

Ultra-quiet operation - the fan activates only under heavy load/temperature

 

Two storage bays 8.9cm (3.5") support 2x 4TB+ hard disks Supports reliable RAID 1 mirroring with hot-swap function

 

Superior performance: up to 75/55 MB/s read/write

 

Power-saving with only 9W in standby, 15.5W in normal operation

 

USB 3.0 port and card reader - with Auto-Copy and share function 2x USB 2.0, Gigabit LAN (RJ45)

 

Accessable from Windows, Mac OS X and Linux workstations

 

Accessable from local network or internet (router required)

 

Anywhere data access from iOS and Android mobile devices

 

Supports DLNA/iTunes media server for audio/ video streaming

 

Scheduled Backup: NAS to USB, NAS to NAS

 

Scheduled BT downloads without requiring a PC

 

Integrated Printer Server

 

 

Product Specifications:

 

 

Chassis

 

Robust, stylish 2.5 mm sandblasting aluminum combined with acrylic PMMA

Dimensions: 170 mm (H) x 90 mm (W) x 225 mm (L) = ca. 3.44 litres

Weight: 2.2 kg net (3.1 kg with two hard disks installed) / 2.8 kg gross

Kensington Security Slot at the back panel (also called a K-Slot or Kensington lock) as a part of an anti-theft system

 

Storage Bays

 

Two 8.9cm/3.5" storage bays (storage drives not included)Easy hard disk installation in two trays

Appropriate screws are includedEach bay with one hot swap button for RAID 1

 

Hard disk support and RAID levels

 

Supports two 8.9cm/3.5" SATA hard disk drives (each up to 4TB+)

Maximum total capacity of 8TB and beyond

Raid support: single disk, RAID 0, RAID 1 (hot swap), JBOD

Supports hard disk spin-down timer

Supports check/format disk, SMART information report, disk usage status report

Hard disks must support SMART temperature feature with temperature sensor

 

Connectors

 

1x Gigabit LAN (RJ45, rear)

1x USB 3.0 (standard A, front), supports Auto-Copy function

2x USB 2.0 (type A, rear)

All USB ports support external devices like hard disks, flash drives, printers, digital camera, etc.

Memory can be shared to local network.

 

Card Reader

 

Built-in card reader in the front panel

Supports SD, SDHC and SDXC flash memory cards

Supports Auto-Copy function

 

Buttons

 

Main power button with status LED

Two Omni Touch Hot Swap buttons (for HDD1, HDD2)

Reset button (hole, rear) for admin passwort reset

 

LED Indicators

 

Status LED: dual colour (access/error: blue/red)

HDD1/HDD2 LEDs: dual colour (access/error: blue/red)

USB 3.0 LED: single colour (access: blue)

Card reader LED: single colour (access: blue)

LAN speed LED (10/100 Mbps: green, 1000 Mbps: orange)

LAN Activity LED (access/link: blinking green)

 

Transfer Speed

 

Read data - from NAS to workstation: up to 75 MB/s [1]

Write data - from workstation to NAS: up to 55 MB/s [1]

 

LAN Configuration

 

Supports Static IP or Auto IP by DHCP server

 

Networking Services

 

Samba Server (SMB file sharing)

Apple File Protocol (AFP)

Media Server/DLNA compliant

iTunes Server

Printer Server (supports USB printers)

BT download without PC (scheduled)

External device sharing (via USB or card reader)

NTP support for scheduled time synchronization

 

APPs for mobile devices

 

Upload and share files from iOS and Android devices.(search for the appropriate "OMNINAS" app)

 

System Services

 

Firmware upgrade

Time-Zone settings

Factory reset function

System log report

 

Built-in Backup functions

 

Quick Auto Copy for external storage (USB 3.0 or card reader to NAS)

NAS to USB storage backup (scheduled or immediately)

NAS to NAS backup (scheduled or immediately)

 

CPU / RAM

 

Processor: PLX NAS 7821, Dual Core ARM 11, 2x 750 MHz

DRAM memory size: 256 MB DDR2

 

Operating System

 

Embedded Linux

 

Power Adapter

 

External 65 W AC/DC power adapter (fanless)

Input voltage: 100~240 V AC, 50~60 Hz

Automatic AC voltage adjustment

Input current: max. 1.6 A (1.0 A) for 100 V (240 V) input voltage

Output: 19 V DC, max. 3.42 ADC

Connector: 5.5/2.5 mm (outer/inner diameter)

Dimensions: 108 mm x 30 mm x 46.5 mm (without cable)

 

Cooling fan and temperature control

 

Ultra-quiet 80 mm cooling fan.

By default the fan is not activated under normal temperature conditions.

The following criteria depicts the system fan behavior dependend on the internal hard disks temperature:

up to 54 °C: fan is off

55~59 °C: fan rotates at low speed

60~61 °C: fan rotates at middle speed

62 °C and above: system shuts down

The System also shuts down when the system temperature exceeds 65 °C. [2]

 

Accessories

 

Quick Installation Guide

AC Power adapter (65 W) with AC power cord (plug depends on region)

Ethernet cable, ca. 150 cm

Driver CDROM with NAS finder software and documentation

Screws for hard disk installation

 

System Requirements

 

- Workstation OS: MS Windows XP SP3, Mac OS X 10.4, Apple Safari 3.0, Linux kernel 2.6.x or later

- Smart phone OS: iOS 4.2, Android 2.3 or later

- Browser: MS Internet Explorer 7.0, Firefox 3.x, Google Chrome, Apple Safari 3.0 or later

- Router for Internet connection

 

Power Consumption

Standby mode: 9 W

Normal operation: 15.5 W

Maximum load: 21 W

 

Standby Mode

 

After a certain time of inactivity the system will enter power saving (standby) mode.

This time can be set under: Settings - General - Power Saving Time Setting

You can select a time from 10 min up to 5h.

 

Environmental Spec

 

Operating temperature range: 5~35 °C (41~95 °F)

Relative humidity range: 10~90% (non-condensing)

 

 

Remarks:

[1] depending on the test environment

[2] the threshold temperatures are subject to change by firmware update. The KD20's threshold temperature refers to the "Current internal temperature" provided by the SMART monitoring system. This temperature may be much higher than the "operating/ambient temperature" that is also mentioned in the hard disk specification. The KD20 only supports hard disks with SMART monitoring system and temperature sensor which all available SATA hard disks should support.