MAIN OVERVIEW FEATURES: Number of Hard Drives Supported: 2Number of Hard Drives Installed: NoFlash Memory Capacity: 4 GBProcessor Manufacturer: RealtekProcessor Core: Quad-core (4 Core)Processor Speed: 1.40 GHzStandard Memory: 1 GBMemory Technology: DDR4 SDRAMEthernet Technology: Gigabit EthernetNumber of Total Expansion Bays: 1Number of 3.5" Bays: 1Controller Type: Serial ATA/600RAID Supported: YesRAID Levels: 0, 1, JBODTotal Number of USB Ports: 3Number of USB 2.0 Ports: 2Network (RJ-45): YesOperating System: QTS 4.3Protocols: DNS,Telnet,DLNA,IPv6,FTPS,FTP,WEBDAV,SSL/TLS,AFP,CIFS,Bonjour,HTTPS,SMSC,NFSv3,SMB,SSH,DHCP,SMTP,FXP,SFTP,AFP 3.3,LDAP,iSCSI,TFTP,IPv4,UPnP,PPTP,TCP/IP,HTTP,CIFS/SMB,DDNS,RSync,SNMPHeight: 7.4"Width: 3.5"Depth: 4.9"Form Factor: TowerWeight (Approximate): 1.54 lbPackage Contents: TS-228A SAN/NAS Storage System 1 x Ethernet Cable 1 x Power Cord AC Adapter 2 x Fixers (Pair, L & R) Quick Installation Guide (QIG) Limited Warranty: 2 Year