Processor  
Processor Model Intel® Celeron® J3455
Processor Architecture X.86 64-bit
Processor Frequency Quad Core 1.5GHz (Max burst up to 2.3GHz)
CPU Single-Core Score /
Hardware Encryption Engine
Hardware Transcoding Engine H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (4096 x 2160); maximum frame rate per second (FPS): 60
Memory  
System Memory 4GB
Pre-installed Memory module 4GB (1 x 4GB)
Total Memory Slot Number 1
Maximum Supported Memory /
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.
Storage  
Disk Slot Number 5
Compatible Drive types 3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
2280 M.2 NVMe Slot Number /
Maximum Internal Raw Storage Capacity 100 TB (20TB x5) (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 2
RJ-45 2.5GbE Network Jack /
RJ-45 10GbE Network Jack 1
 SFP+ 10GbE Network Jack /
USB3.0 Host Port 2
USB2.0 Host Port /
COM /
HDMI 1
VGA /
PCIe Slots /
M.2 2280 NVMe Slot /
Appearance  
Size (H*W*D) 227 x 225x 136 mm
Packaging Size (H*W*D) 300 x 275 x 186  mm
Weight 3.6 kg
Others  
System Fan 80 x 80 x 25mm  2PCS
Fan Mode Smart, High speed, Middle speed, Low speed
Noise Level 27.4 dB(A) (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in idle state) 
Power Supply 90W
Redundancy Power Supply /
AC Input Voltage 100V - 240V AC
Current Frequency 50/60 Hz, Single frequency
Power Consumption 45W(Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in read/write state) 
15 W (Fully loaded Seagate 4TB ST4000VN008 hard drive(s) in hibernation)
Limited warranty 3 years
Certificate FCC, CE, CCC, KC
Environment RoHS, WEEE
Temperature  
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 8.0 or later version
Storage Management  
Supported RAID Types 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 RAID 1,RAID5,RAID 6,RAID10
Volume Expansion by Adding a HDD RAID5,RAID6
RAID Migration
SSD Cache
Hot Spare
SSD TRIM /
Hard Drive S.M.A.R.T.
Seagate IHM
NVRAM write cache(BBU-protected) /
Shared Folder Snapshot
LUN Snapshot /
File Services  
File Protocol SMB/AFP/NFS/FTP/SFTP/WebDAV
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
Backup  
Rsync Backup
Duple Backup
Centralized Backup
Snapshot
USB  Backup
Cloud Sync
Time Machine Backup
File System Snapshot
TFM Backup
Networking  
TCP/IP IPv4/IPv6
Protocols CIFS/SMB, NFS, FTP, SFTP, HTTPS, SSH, iSCSI, SNMP
Link Aggregation /
DLNA Compliance
VPN Client
VPN Server
Proxy Client
Proxy Server /
UPnP/Bonjour Discovery
TNAS.online Remote Access
DDNS
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
Security  
Firewall Protection
Account Auto-block Protection
AES Volume and Shared Folder Encryption
Importable SSL certificate
Instant Alert via email, Desktop Notification, Beep
RSA 2024 EncryptionTOS 5.0  
PAM (Pluggable Authentication Modules)
OTP AuthenticationTOS 5.0
HyperLock File SystemTOS 5.0
Power Managerment  
Power Resume
Scheduled Power On/Off
Wake up On LANWOL
UPS Supported
Administration  
Multi-window, Multi-task System Management
Custom Desktop
Control Panel
Resource Monitor
Syslog
OS UI Language English,German, French, Spanish, Italian, Magyar, Chinese,Japanese,KoreanTurkish, Portuguese, Russian
Applications  
Application Center
iSCSI Target
Terra Photos
TerraSync
Duple Backup
CloudSync
Centralized Backup
USB Backup
VPN Server
Transmission
qBittorent
Aria 2
Terra Search
Deduplication
Web Server
Clam Antivirus
EMBY
Multi Media Server
Plex Media Server
Docker Manager
Snapshot