Synology 2 Bay NAS DiskStation (Diskless)

An easy-to-use private cloud for everyone

DS220j is an entry-level 2-bay NAS designed for home and personal users to store and share photos, videos, and documents. The private cloud solution is powered by the award-winning DiskStation Manager (DSM) OS, providing an intuitive user interface and safe data protection approaches for easy digital asset backups from computers and mobile devices at no additional cost.

Centralized backup solution for your digital devices

Synology's comprehensive multi-version backup solutions protect your digital assets on computers (Windows/Mac) and mobile phones (Android/iOS) against malicious attacks, including the rising threat from encryption-based ransomware.

Stream content to your TV

Turn your Synology NAS into a home media hub and stream your digital content to your favorite electronic devices, including computers, mobile devices, Samsung TV, Apple TV, Google Chromecast, and DLNA devices.

Synology Hybrid RAID (SHR) technology

Storage management is easy with Synology Hybrid RAID (SHR) technology. SHR is an automated RAID management system that allows you to easily create and expand storage volumes and migrate RAID types without requiring details on the RAID setup. SHR provides 1-disk redundancy to safeguard your data in case of drive failures

Cost-effective

SHR maximizes the data capacity of your RAID when different size HDDs are used. 

Easy Management

For new users with limited technical knowledge who want to protect their data using RAID technology, a convenient installation wizard will guide you through all the steps during your first installation.

Scalability

Add new disks on the fly in Storage Manager with a simple click. 

Flexibility

While creating a volume, choose to plan ahead and leave empty or unallocated space for future use.

Seamless integration with your mobile devices

Synology mobile applications are designed to give you quick and secure access to your data wherever you are.

Specifications

CPU	CPU Model	Realtek RTD1296
	CPU Architecture	64-bit
	CPU Frequency	4-core 1.4 GHz
	Hardware Encryption Engine
Memory	System Memory	512 MB DDR4 non-ECC
	Notes	Synology reserves the right to replace memory modules with the same or higher frequency based on the supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage	Drive Bays	2
	Compatible Drive Type*	3.5" SATA HDD 2.5" SATA HDD (with optional 2.5" Disk Holder) 2.5" SATA SSD (with optional 2.5" Disk Holder)
	Maximum Single Volume Size*	108 TB
	Hot-Swappable Drive	-
	Notes	"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports	RJ-45 1GbE LAN Port	1
	USB 3.0 Port	2
File System	Internal Drives	EXT4
	External Drives	EXT4 EXT3 FAT NTFS HFS+ exFAT*
	Notes	exFAT Access is purchased separately in Package Center.
Appearance	Size (Height x Width x Depth)	165 mm x 100 mm x 225.5 mm
	Weight	0.88 kg
Others	System Fan	92 mm x 92 mm x 1 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode Low-power mode
	Brightness Adjustable Front LED Indicators
	Power Recovery
	Noise Level*	18.2 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	60 W
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption*	12.46 W (Access) 5.06 W (HDD Hibernation)
	British Thermal Unit	45.52 BTU/hr (Access) 17.27 BTU/hr (HDD Hibernation)
	Notes	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature	Operating Temperature	0°C to 40°C (32°F to 104°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification	FCC CE EAC BSMI VCCI CCC RCM KC
Warranty	2 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Adapter X 1 AC Power Cord X 1 RJ-45 LAN Cable X 1 Quick Installation Guide X 1
Optional Accessories	Visual Station: VS960HD/VS360HD Surveillance Device License Pack Disk Holder: Type C