SKU: T12-450


12 Bay NAS For SMB

TerraMaster T12-450

Built for High-speed Storage

The T12-450 is powered by an Intel Atom C3558R quad-core processor, with main frequency of up to 2.4GHz. It is also equipped with a 8GB DDR4 dual-channel memory (expandable up to 32GB); dual SFP+ 10Gb ethernet interfaces; and dual 2.5GbE interfaces, providing up to 20Gb transmission bandwidth through Link Aggregation. In addition, the transmission performance of the T12-450 has been doubled by the installation of dual M.2 NVMe SSD slots in combination with TerraMaster Hyper Cache SSD cache acceleration technology. The T12-450 has been specifically developed for users who require high-speed storage, which can meet the stringent demands of 4K image editing, virtualization, databases, and other applications with high storage performance requirements.


By building a 10-gigabit network, multiple Windows/Mac workstations can connect to T12-450 simultaneously for easier collaborative operations of online editing of multi-track 4K material, special effects, video composition, and shot clip import and output, which greatly improves the work efficiency and significantly reduces the production time.



New Operating System

T12-450 runs the new operating system TOS 5, which adds more than 50 new functions and 600 improvements compared with the previous generation. The new features meet more business requirements, as well as significantly improving response speed, security, and ease of use.

An Abundance of Data Storage Space

The T12-450 supports up to 20TB of hard drive, and the total capacity can reach 240TB. It can store 90 million HD photos,48 million working documents, 120,000 HD movies, and 12 million downloadable music, enabling you to back up the data in Windows PC, MAC computer, mobile phone, HDD enclosure, and network disk to TNAS for centralized management. This adequately protects users from data loss resulting from hardware malfunction or ransomware.

Unique Hyper Cache SSD Cache Acceleration Technology

Hyper Cache is a unique SSD cache acceleration technology developed by TerraMaster. Compared with the traditional SSD cache, the Hyper Cache offers the user a choice of three alternative cache modes designed to suit different usage requirements. It can also improve the cache speed and security through the creation of disk arrays for the SSDs. The TerraMaster Hyper Cache could improve storage performance by 100%, providing the user with more efficient and reliable hybrid storage.

Small-sized Compact Design

Structural optimization has remarkably reduced the space occupied by the T12-450, thus realizing product miniaturization. By adopting both vertical and horizontal designs, the T12-450 better satisfies the usage requirements of small-sized business users with limited space.

Flexible Storage Space Management

TRAID is the abbreviation of TerraMaster RAID. TRAID is a flexible disk array management tool developed by TerraMaster. It has features such as the automatic combination of disk space, hard disk failure redundancy protection, and automatic capacity expansion. All these functions do not require manual configuration by the user, and the system will automatically complete the configuration according to the properties of the hard disk. TRAID provides users with an optimized, flexible and elastic disk array management solution, especially suitable for new users who are not proficient in how to configure a disk array.

Across-Platform File Services

The T12-450supports all mainstream file services: SMB, NFS, SFTP/FTP, AFP, iSCSI, WebDAV; and is provided with multiple permission management of users, user groups, and folder, meeting across-platform file services in various network environments.

Rich Backup Solutions

TOS can protect valuable data using visual user interfaces and trustworthy storage solutions thanks to its integration with multiple backup applications that can address backup needs in an array of circumstances.
Time Machine Backup: Allows macOS users to back up data on MAC computers, manage folder storage quotas, and selectively restore data based on the previous version of the backed up data as per timeline.
TerraSync: It’s not only suitable for data synchronization among various clients for realizing version management of synchronized data, but it also can help Windows computer users to realize the multi-version backup of computer data.
TerraMaster File System Snapshot (TFSS): TFSS takes snapshots of entire file system of a TNAS device by reaping the benefits of the features of the file system, so as to avoid data loss caused by misoperations or ransomware attacks.
TFM Backup: With TFM Backup, one can easily back up shared folders in TNAS or to a wide range of various local storage locations or even to a remotely mounted folder.
CloudSync: This backs up or synchronizes TNAS data with the cloud drive, which not only improves the availability of cloud data, but also provides several offsite backup versions, thus safeguarding the security of your data.
Snapshot: It is possible to take continuous snapshots of your folders or iSCSI LUNs by enabling the snapshot schedule with the advanced storage technology and optimized snapshot technology available via the BTRFS file system. When problems arise, the system can roll back to points-in-time and restore to the last backup, thereby ensuring that your data is well protected.
Duple Backup: In order to provide several offsite backup versions, Duple Backup provides advanced data protection by backing up files in TNAS to another remote TNAS, file server, or cloud drive.


Building a Secure Access Channel

One can upgrade their network security protection level through private data access channel provided by VPN servers. The TerraMaster VPN server offers three modes of VPN services, namely PPTP, OpenVPN, and L2TP/IPsec. It is applicable to VPN connections for most network devices.

Improving IT Management Efficiency

The T12-450 connects to your domain server through the AD domain or LDAP domain and assigns storage space access rights to your domain users and user groups, in essence reducing IT management costs whilst also ameliorating the efficiency of staff.

No Fear of Ransomware Attacks

The TerraMaster File System Snapshot (TFSS) is a data protection tool founded upon on file system developed by TerraMaster. The TFSS takes snapshots of an entire file system by exploiting advantages of the features of the BTRFS file system, as such all the data on your TNAS device will be protected. In case of an accident, one just simply clicks the snapshot list to recover the data in an instant, without the risk of human error or ransomware attacks.


Worry-free After-sales Service

TerraMaster implements its unique after-sales service policy that “provides replacements within 2 years” and offers worry-free quality assurance through real-time online customer service, a professional technical forum, an online user guide, a technical service mailbox, and remote troubleshooting.

SKU: T12-450 Category: Tags: , , , , ,


Processor Model Intel Atom® C3558R
Processor Architecture X.86 64-bit
Processor Frequency Quad Core 2.4 GHz
CPU Single-Core Score /
Hardware Encryption Engine
Hardware Transcoding Engine /
System Memory 8 GB
Pre-installed Memory module 8 GB (1 x 8GB)
Total Memory Slot Number 2 (DDR4 SODIMM)
Maximum Supported Memory 32 GB (16GB+16GB)
Note TerraMaster 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.
Disk Slot Number 12
Compatible Drive types 3.5″ SATA HDD
2280 M.2 NVMe Slot Number /
Maximum Internal Raw Storage Capacity 240TB (20TB x12) (Capacity may vary by RAID types)
Drive Hot Swap
Note  . Hard drive vendors will release their latest models of hard drives, and Maximum internal raw storage capacity may be adjusted accordingly.
. The maximum single volume size is not directly related to the maximum raw capacity.
File System
Internal Drive Btrfs, EXT4
External Drive EXT3, EXT4, NTFS, FAT32, HFS+
External Ports
RJ-45 1GbE Network Jack /
RJ-45 2.5GbE Network Jack 2
RJ-45 10GbE Network Jack /
 SFP+ 10GbE Network Jack 2
USB3.1 Host Port 2(5Gbps)
USB2.0 Host Port /
Console Port 1
PCIe Slots /
M.2 2280 NVMe Slot 2
Size (H*W*D) 334 x 163x 295 mm
Packaging Size (H*W*D) 437 x 235 x 370  mm
Weight 10.3 kg
System Fan 80 x 80 x 25mm 3PCS
Fan Mode Smart, High speed, Middle speed, Low speed
Noise Level 31.4 dB(A) (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in idle state)
Power Supply 500 W
Redundancy Power Supply /
AC Input Voltage 100V – 240V AC
Current Frequency 50/60 Hz, Single frequency
Power Consumption 95 W(Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in read/write state)
33 W (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in hibernation)
Limited warranty 2 years
Certificate FCC, CE, CCC, KC
Environment RoHS, WEEE
Working Temperature 0°C  ~ 40°C (32°F ~ 104°F)
Storage Temperature -20°C ~ 60°C (-5°F ~ 140°F)
Relative Humidity  5% ~ 95% RH
Package Contents
Host unit (x1)
Power cord (x1)
Power Adapter(x1)
RJ-45 network cable (x1)
Quick Installation Guide (x1)
Limited Warranty Note(x1)
Screws(a few)
TOS Features
OS Supported
Supported Client OS Windows OS, Mac OS, Linux OS
Supported Web Browsers Google Chrome 97.0.xxxx, Mozilla Firefox 9.3,Apple Safari 12.1 ; Microsoft Edge 99.0.xx or later version.
Supported mobile OS iOS12.0, Android 9.0 or later version
Storage Management
Supported RAID Types TRAID, Single, JBOD, RAID 0, RAID 1, RAID5, RAID 6, RAID 10
Maximum Internal Volume Number 256
Maximum iSCSI Target 128
Maximum iSCSI LUN 256
Volume Expansion with Larger HDDs TRAID,RAID 1,RAID5,RAID 6,RAID10
Volume Expansion by Adding a HDD TRAID,RAID5,RAID6
RAID Migration
SSD Cache
Hot Spare
Hard Drive S.M.A.R.T.
Seagate IHM
NVRAM write cache(BBU-protected) /
Shared Folder Snapshot
LUN Snapshot /
File Services
Maximum Concurrent SMB/AFP/FTP/SFTP Connections 500
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Account & Shared Folder
Maximum local user’s account number 2048
Maximum local group number 512
Maximum shared folders number 512
Maximum shared folders syncing tasks 8
Rsync Backup
Duple Backup
Centralized Backup
USB  Backup
Cloud Sync
Time Machine Backup
File System Snapshot
TFM Backup
Link Aggregation
DLNA Compliance
VPN Client
VPN Server
Proxy Client
Proxy Server /
UPnP/Bonjour Discovery
TNAS.online Remote Access
Access Right Management
Batch users creation /
Import/Export users
User Quota Managerment
Local user access control for CIFS/SAMBA and FTP
Domain Authentication
AD Domain
LDAP Client
LDAP Server /
Firewall Protection
Account Auto-block Protection
AES Volume and Shared Folder Encryption
Importable SSL certificate
Instant Alert via email, Desktop Notification, Beep
RSA 2048 EncryptionTOS 5.0
PAM (Pluggable Authentication Modules)
OTP AuthenticationTOS 5.0
HyperLock File System
Power Managerment
Power Resume
Scheduled Power On/Off
Wake up On LANWOL
UPS Supported
Multi-window, Multi-task System Management
Custom Desktop
Control Panel
Resource Monitor
OS UI Language English,German, French, Spanish, Italian, Magyar, Chinese,Japanese,KoreanTurkish, Portuguese, Russian
Application Center
iSCSI Target
Terra Photos
Duple Backup
Centralized Backup
USB Backup
VPN Server
Aria 2
Terra Search
Web Server
Clam Antivirus
Multi Media Server
Plex Media Server
Docker Manager