
Asustor AS6704T
Score: 79/100
Terramaster F2-425 Plus
Score: 74/100Rankings

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 F2-425 Plus is a compact two-bay NAS that combines a powerful Intel N150 quad-core CPU, 8 GB DDR5 RAM, dual 5 GbE ports and three M.2 NVMe slots, delivering high-speed hybrid storage and direct 4K/8K media playback via HDMI.
| Attribute | ![]() | ![]() |
|---|---|---|
88 TBbest | 88 TBbest | |
4best | 2 | |
2.5 Gbps | 5 Gbpsbest | |
4best | 4best | |
4 GB | 8 GBbest | |
| ↓ lower better | 35 Wbest | 48 W |
| ↓ lower better | 17.6 dBbest | 20 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 | 8 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 5 Gbps |
Power Consumption (Active) (W) | 35 W | 48 W |
Noise Level (dB) | 17.6 dB | 20 dB |
Build & Design(3) | ||
Weight (kg) | 3.5 kg | 1.9 kg |
Power Supply Type | 90 W AC adapter | External |
Warranty Period (years) | 3 years | 2 years |
Connectivity(1) | ||
USB Ports | 2 | 3 |
Storage & Capacity(3) | ||
Drive Bays | 4 | 2 |
RAID Support | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 | RAID 0, 1, 5, 6, 10, JBOD, Single, TRAID, TRAID+ |
Supported Drive Types | 3.5"/2.5" SATA HDD/SSD | 3.5" SATA HDD, 2.5" SATA HDD, SATA SSD |

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”


Professional reviewers commend the F2-425 Plus for its hardware-forward design, noting the rare triple M.2 slots, dual 5 GbE ports and strong Intel CPU as standout features that deliver fast file transfers and reliable 4K/8K transcoding. However, they consistently point out the modest TOS app ecosystem and less polished UI as the main drawbacks that keep it from being a market leader.
Everyday users appreciate the straightforward setup, quiet operation, rapid file transfers and the convenience of HDMI output for media playback. The most common complaints revolve around the limited app selection and a UI that feels less refined than competing platforms.