
Asustor Flashstor 6 FS6706T
Score: 83/100
Synology DS223j
Score: 66/100Rankings

The ASUSTOR Flashstor FS6706T is a compact 6-bay all-SSD NAS delivering blazing 2.5 GbE performance and 4K transcoding. Its limitations include a modest 4 GB RAM base and the inability to use HDDs, which may restrict capacity flexibility. Best suited for content creators and small-to-medium businesses that prioritize speed over massive raw capacity.

The Synology DiskStation DS223j is an entry-level 2-bay NAS that offers ultra-quiet operation, low power draw, and an easy-to-use DSM interface for basic backups and media streaming. Its limitations include modest 1 GB RAM, a single gigabit Ethernet port, and non-hot-swap drive bays. It is best for home users or beginners needing simple, energy-efficient storage.
| Attribute | ![]() | ![]() |
|---|---|---|
— | 108 TBbest | |
6best | 2 | |
4best | 4best | |
2 GHzbest | 1.7 GHz | |
4 GBbest | 1 GB | |
590 MB/sbest | — | |
583 MB/sbest | — | |
4best | 2 |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Drive Bays | 6 | 2 |
Performance(3) | ||
CPU Model | Intel Celeron N5105 | Realtek RTD1619B |
CPU Clock Speed (GHz) | 2.0 GHz | 1.7 GHz |
Memory (RAM) (GB) | 4 GB | 1 GB |
Connectivity(3) | ||
USB Ports | 4 | 2 |
Ethernet Ports | 2 | 1 |
Ethernet Speed (Gbps) | 2.5 Gbps | 1 Gbps |
Power(2) | ||
Power Consumption (Idle) (W) | 0.83 W | 4 W |
Power Consumption (Active) (W) | 18.2 W | 16.31 W |
Build & Design(2) | ||
Weight (kg) | 1.35 kg | 0.87 kg |
Dimensions (H×W×D) (cm) | 30.7×4.8×19.3 cm cm | 10.0×22.6×16.5 cm cm |

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

Professional reviewers commend the FS6706T for its blistering all-flash performance that pushes the limits of 2.5 GbE, its silent operation, and robust 4K transcoding for Plex streaming, while noting the base 4 GB RAM and lack of HDD support as trade-offs.
Home users and small-business owners praise the fast SSD speeds, quiet operation and low energy use, but note occasional concerns about limited memory and the inability to add traditional hard drives.



Professional reviewers describe the DS223j as a budget-friendly entry into Synology's lineup, commending its energy-efficient design, ultra-quiet operation, and the robust DSM software suite. However, they criticize the modest 1 GB of RAM, the single 1 GbE network port, and the entry-level CPU as constraints that limit the device to basic file serving and backup tasks.
Everyday users appreciate the DS223j for its straightforward setup, near-silent operation, and low power draw, often highlighting its reliability for personal backups and modest media streaming. Recurring complaints focus on slow network transfer speeds, limited RAM causing sluggishness under load, and occasional fan noise when the unit is busy.