CPU	CPU Model	Realtek RTD1619B
	CPU Quantity	1
	CPU Architecture	64-bit
	CPU Frequency	4-core 1.7 GHz
	Hardware Encryption Engine
Memory	System Memory	1 GB DDR4 non-ECC
	Notes	Synology reserves the right to replace memory modules with the same or higher frequency based on 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* (See all supported drives)	3.5" SATA HDD 2.5" SATA SSD (with optional 2.5" Disk Holder)
	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 3.2 Gen 1 Port*	2
	Notes	This device's 1GbE LAN ports have a maximum transmission unit (MTU) size of 1,500 bytes. The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
File System	Internal Drives	Btrfs ext4
	External Drives	Btrfs ext4 ext3 FAT NTFS HFS+ exFAT
	Notes	Btrfs file system is available from DSM 7.2-64570.
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	100V to 240V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	16.31 W (Access) 4 W (HDD Hibernation)
	British Thermal Unit	55.62 BTU/hr (Access) 13.64 BTU/hr (HDD Hibernation)
	Notes	For more information on how power consumption is measured, refer to this article. 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 BSMI VCCI RCM UKCA EAC CCC KC
Warranty	2-year hardware warranty, extendable to 4 years with Extended Warranty Plus
	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	3.5" SATA HDD: HAT3300 Surveillance Device License Pack Disk Holder: Type C

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Synology DS223j 2-Bay NAS Storage (Realtek RTD1619B Quad Core 1.7GHz,1GB DDR 4 ,1 * 1GbE 2 x USB 3.2 Gen 1)