| Storage drives installed | Yes |
| Total installed storage capacity | 16 TB |
| Number of storage drives installed | 4 |
| Number of storage drives supported | 4 |
| Installed storage drive type | HDD |
| Supported storage drive types | HDD & SSD |
| Storage drive capacity | 4 TB |
| Storage drive interface | Serial ATA III |
| RAID support | Yes |
| Supported storage drive interfaces | Serial ATA II, Serial ATA III |
| Storage drive sizes supported | 2.5,3.5" |
| RAID levels | 0, 1, 5, 6, 10, JBOD |
| Online RAID migration | Yes |
| Online RAID expansion | Yes |
| RAID rebuild | Yes |
| Hot-swap drive bays | Yes |
| Supported file systems | FAT32, HFS+, NTFS, ext3, ext4 |
| Bad block scan | Yes |
| Disk roaming | Yes |
| Processor family | Annapurna Labs |
| Processor manufacturer | Annapurna Labs |
| Processor model | Alpine AL-214 |
| Processor frequency | 1.7 GHz |
| Processor cores | 4 |
| Internal memory | 1 GB |
| Internal memory type | DDR3 |
| Maximum RAM supported | 1 GB |
| Memory slots | 1 |
| Flash memory | 512 MB |
| Ethernet LAN | Yes |
| Ethernet LAN data rates | 10,100,1000 Mbit/s |
| DHCP client | Yes |
| DHCP server | Yes |
| Jumbo frames support | Yes |
| iSCSI support | Yes |
| Wake-on-LAN ready | Yes |
| Link aggregation | Yes |
| Load balancing system | Yes |
| Dynamic DNS (DDNS) | Yes |
| WLAN adapter supported | Yes |
| Ethernet LAN (RJ-45) ports | 2 |
| USB port | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| Chassis type | Tower |
| Cooling type | Active |
| Product colour | Blue, White |
| Number of fans | 1 fan(s) |
| Fan diameter | 12 cm |
| LED indicators | HDD, LAN, Power, SSD, Status, USB |
| Cable lock slot | Yes |
| Cable lock slot type | Kensington |
| Type | NAS |
| Device class | Home & Home Office |
| Backup function | Yes |
| Backup features | Cloud, USB drive, iSCSI LUN |
| Buzzer | Yes |
| Multilingual support | Yes |
| Noise level | 21.3 dB |
| Third-party support | Yes |
| Snapshot | Yes |
| Management protocols | SNMP |
| Web-based management | Yes |
| Security algorithms | 256-bit AES, FIPS 140-2, HTTPS, SSH |
| Access Control List (ACL) | Yes |
| Reset button | Yes |
| On/off switch | Yes |
| Built-in BitTorrent client | Yes |
| Built-in FTP server | Yes |
| Browser supported | Mozilla Firefox, Microsoft Edge, Google Chrome, Apple Safari |
| System log | Yes |
| Hot spare | Yes |
| S.M.A.R.T. support | Yes |
| Share folder | CIFS/SMB, FTP, WebDAV |
| Backup button | Yes |
| Universal Plug and Play (UPnP) | Yes |
| USB copy function | Yes |
| Operating system installed | QNAP Turbo System |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64 |
| Linux operating systems supported | Yes |
| Mac operating systems supported | Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks |
| Server operating systems supported | Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 |
| Power supply location | External |
| Power supply unit (PSU) capacity | 90 W |
| Number of power supply units | 1 |
| Power consumption (typical) | 26.57 W |
| Power consumption (sleep) | 11.928 W |
| AC input voltage | 100 - 240 V |
| Fan voltage | 12 V |
| Width | 160 mm |
| Depth | 219 mm |
| Height | 169 mm |
| External power adapter | Yes |
| Cables included | AC, LAN (RJ-45) |
| Operating temperature (T-T) | 0 - 40 °C |
| Operating relative humidity (H-H) | 5 - 95% |
| Storage temperature (T-T) | -20 - 70 °C |
| Harmonized System (HS) code | 84714100 |
| Description |
| QNAP TS-431K. Total installed storage capacity: 16 TB, Installed storage drive type: HDD, Supported storage drive types: HDD & SSD. Processor family: Annapurna Labs, Processor manufacturer: Annapurna Labs, Processor model: Alpine AL-214. Internal memory: 1 GB, Internal memory type: DDR3, Maximum RAM supported: 1 GB. Ethernet LAN data rates: 10,100,1000 Mbit/s. Chassis type: Tower, Cooling type: Active, Product colour: Blue, White |
