
Asustor AS6704T
Score: 79/100
Terramaster F4-425 Plus
Score: 61/100Rankings

The Asustor Lockerstor 4 Gen2 (AS6704T) is a high-performance 4-bay NAS aimed at power users and small businesses, offering up to 88 TB raw capacity, extensive RAID options, dual 2.5 GbE networking and four M.2 NVMe slots. It delivers fast file transfers and 4K media handling, though it lacks native 10 GbE and requires tools for drive installation.

The TerraMaster F4-425 Plus is a high-performance 4-bay NAS featuring an Intel N150 quad-core CPU, 16 GB DDR5 memory, dual 5 GbE networking and three M.2 NVMe slots. It targets homelab enthusiasts and small-business users who need ample RAM and fast hybrid storage, though its UI and expandability lag behind some competitors.
| Attribute | ![]() | ![]() |
|---|---|---|
88 TB | 120 TBbest | |
4best | 4best | |
2.5 Gbps | 5 Gbpsbest | |
4best | 4best | |
4 GB | 16 GBbest | |
| ↓ lower better | 35 Wbest | 62 W |
| ↓ lower better | 17.6 dBbest | 33 dB |
3 yearsbest | 2 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(5) | ||
CPU Model | Intel Celeron N5105 | Intel N150 |
System Memory (GB) | 4 GB | 16 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 5 Gbps |
Power Consumption (Active) (W) | 35 W | 62 W |
Noise Level (dB) | 17.6 dB | 33 dB |
Build & Design(3) | ||
Weight (kg) | 3.5 kg | 2.9 kg |
Power Supply Type | 90 W AC adapter | External |
Warranty Period (years) | 3 years | 2 years |
Connectivity(1) | ||
USB Ports | 2 | 4 |
Storage & Capacity(3) | ||
Maximum Raw Capacity (TB) | 88 TB | 120 TB |
RAID Support | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 | TRAID, TRAID+, RAID 0, 1, 5, 6, 10, JBOD, Single |
Supported Drive Types | 3.5"/2.5" SATA HDD/SSD | SATA III |

Products in the top-left offer the best value (high score, low price).

Professional reviewers rate the AS6704T extremely highly, with PCMag giving it a perfect 5.0/5.0 "Exemplary" score for its blazing speeds, robust hardware and extensive app library.
Everyday users love the AS6704T's raw performance, flexible M.2 and 2.5 GbE options, and the breadth of apps that let them run Plex, Docker and VMs with ease.

“high-performance design for intensive tasks like video editing”

“up to 590 MB/s read and 555 MB/s write speeds”

“smooth 4K streaming and transcoding”



Reviewers praise the powerful Intel CPU, generous DDR5 memory and dual 5 GbE ports, but criticize the dated TOS interface, lack of PCIe expansion and limited HDMI functionality.
Users love the silent operation, strong RAM for Docker/VMs and hardware transcoding, while common complaints revolve around the unusable HDMI port, UI clunkiness and desire for faster PCIe 4.0 NVMe slots.