Asustor AS6704T
Score: 79/100
Synology DS223 2-bay
Score: 76/100Rankings
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 DS223 offers 36 TB of raw capacity, 2 GB RAM and a familiar DSM experience in a compact 2-bay chassis. It's a solid, budget-friendly choice for backups and file sharing, though network speed and lack of SSD cache keep it from high-performance scenarios.
| Attribute | | |
|---|---|---|
88 TBbest | 36 TB | |
4best | 2 | |
2.5 Gbpsbest | 1 Gbps | |
4best | 4best | |
4 GBbest | 2 GB | |
| ↓ lower better | 35 W | 16.31 Wbest |
| ↓ lower better | 17.6 dBbest | 18.2 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 | Realtek RTD1619B |
System Memory (GB) | 4 GB | 2 GB |
Ethernet Speed (Gbps) | 2.5 Gbps | 1 Gbps |
Power Consumption (Active) (W) | 35 W | 16.31 W |
Noise Level (dB) | 17.6 dB | 18.2 dB |
Build & Design(3) | ||
Weight (kg) | 3.5 kg | 0.88 kg |
Power Supply Type | 90 W AC adapter | 60W AC adapter |
Warranty Period (years) | 3 years | 2 years |
Connectivity(2) | ||
Link Aggregation Support | true | false |
USB Ports | 2 | 3 |
Storage & Capacity(4) | ||
Maximum Raw Capacity (TB) | 88 TB | 36 TB |
Drive Bays | 4 | 2 |
RAID Support | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 | RAID 0,RAID 1,Basic,SHR |
Supported Drive Types | 3.5"/2.5" SATA HDD/SSD | 3.5" SATA HDD,2.5" SATA SSD/HDD |
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.
Professional reviewers praise the DS223 as an excellent entry-level NAS that delivers the core Synology experience at a competitive price, but note the single 1 GbE port, lack of SSD caching, and insufficient hardware for transcoding or virtualization.
Everyday users consistently commend the straightforward setup, dependable operation, and quiet fan, while complaints focus on limited network speed, absence of SSD caching, and the cap on maximum drive capacity.
“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”
