QNAP 40TB UltraDrive 4‑Bay NAS
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| Brand | QNAP |
| EAN | 5051868091926 |
| ASIN | B07L7F668F |
| Model | TVS-473E-4G/40TB-ULTRA |
| MPN | TVS-473E-4G/40TB-ULTRA |
| 3.5 mm out | Yes |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 100 - 240 V |
| Backup button | Yes |
| Backup features | Cloud,USB drive,iSCSI LUN |
| Backup function | Yes |
| Browser supported | Microsoft Internet Explorer 10+, Google Chrome, Apple Safari 7+, Mozilla Firefox |
| Built-in display | Yes |
| Built-in FTP server | Yes |
| Built-in iTunes server | Yes |
| Built-in speakers | Yes |
| Builtin speakers | 1 |
| Cable lock slot | Yes |
| Cable Lock Slot | Yes |
| Cable lock slot type | Kensington |
| Cables included | AC,LAN (RJ-45) |
| Chassis type | Tower |
| Colour | Black,Bronze |
| Cooling type | Active |
| Depth | 279.6 mm |
| Device class | Small & Medium Business |
| DHCP Client | Yes |
| DHCP client | Yes |
| DHCP server | Yes |
| Display type | LCD |
| Dynamic DNS DDNS | Yes |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| Ethernet LAN ports | 4 |
| Fan diameter | 12 cm |
| Fan diameter 2 | 6 cm |
| Flash memory | 512 MB |
| HDMI | 2 |
| HDMI version | 1.4b |
| Height | 188.2 mm |
| Hot spare | Yes |
| Hot-swap drive bays | Yes |
| Installed storage drive type | HDD |
| iSCSI support | Yes |
| Jumbo frames support | Yes |
| LED indicators | HDD,LAN,Status,USB |
| Link aggregation | Yes |
| Linux operating systems supported | Yes |
| Mac operating systems supported | Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion |
| Management protocols | SNMP |
| Maximum RAM supported | 64 GB |
| Memory clock speed | 2133 MHz |
| Noise level | 21.7 dB |
| Number of Users | 4096 user(s) |
| On-board graphics adapter model | AMD Radeon R7 |
| On/off switch | Yes |
| Online RAID expansion | Yes |
| Online RAID migration | Yes |
| Operating relative humidity | 5 - 95% |
| Operating system installed | QNAP Turbo System |
| Operating system version | 4.3 |
| Output current | 3.5 A |
| Power supply location | Built-in |
| Processor boost frequency | 3.4 GHz |
| Processor family | AMD R |
| Processor frequency | 2.1 GHz |
| Processor model | RX-421BD |
| Quick installation guide | Yes |
| RAID levels | 0, 1, 5+S, 5, 6, 10, JBOD |
| RAID support | Yes |
| RAID Support | Yes |
| Remotely operated | Yes |
| Reset button | Yes |
| Security algorithms | 256-bit AES,HTTPS,SSH |
| Share folder access right management | Yes |
| Snapshot | Yes |
| Storage drive sizes supported | 2.5,3.5,M.2 |
| Storage drives installed | Yes |
| Supported file systems | FAT32,HFS+,exFAT,ext3,ext4 |
| Supported network protocols | CIFS/SMB, AFP (v3.3), FTP, FTPS, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP |
| Supported storage drive types | HDD,SSD |
| System log | Yes |
| Third-party support | Yes |
| Total installed storage capacity | 40 TB |
| Type | NAS |
| Universal Plug and Play UPnP | Yes |
| USB port | Yes |
| Wake-on-LAN ready | Yes |
| Web-based management | Yes |
| Wi-Fi | No |
| Width | 199.3 mm |
| WLAN adapter supported | Yes |
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