
Asustor AS6508T
Score: 86/100
Synology DS423
Score: 69/100Rankings

The Asustor AS6508T is an enterprise-grade 8-bay NAS featuring dual 10 GbE, optional NVMe caching and extensive RAID support, targeting SMBs and power users.

The DS423 is a compact, entry-level 4-bay NAS that delivers Synology's DSM experience with low power draw and quiet operation, aimed at home users and small offices needing simple file sharing and backup.
| Attribute | ![]() | ![]() |
|---|---|---|
128 TBbest | 72 TB | |
8best | 4 | |
10 Gbpsbest | 1 Gbps | |
4best | 4best | |
8 GBbest | 2 GB | |
| ↓ lower better | 66.9 W | 32.41 Wbest |
| ↓ lower better | 22 dB | 20.6 dBbest |
2 yearsbest | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Security(1) | ||
OS Compatibility | ADM | DSM |
Performance(5) | ||
CPU Model | Intel Atom C3538 | Realtek RTD1619B |
System Memory (GB) | 8 GB | 2 GB |
Ethernet Speed (Gbps) | 10 Gbps | 1 Gbps |
Power Consumption (Active) (W) | 66.9 W | 32.41 W |
Noise Level (dB) | 22 dB | 20.6 dB |
Build & Design(2) | ||
Weight (kg) | 6.2 kg | 2.21 kg |
Power Supply Type | Internal 250W | 90W |
Storage & Capacity(4) | ||
Maximum Raw Capacity (TB) | 128 TB | 72 TB |
Drive Bays | 8 | 4 |
RAID Support | RAID 0,1,5,6,10, JBOD, Single, hot spare, online capacity expansion | 0,1,5,6,10,Basic,Hybrid RAID,JBOD |
Supported Drive Types | SATA III | 3.5" SATA HDD,2.5" SATA SSD |


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

Reviewers praise its forward-looking networking, solid internal design and quiet operation, while noting UI sluggishness and lack of HDMI.
Users love the 10 GbE speed and NVMe caching but complain about the slow web UI and screw-mounted trays.

Professional reviewers position the DS423 as a dependable, cost-effective entry-level NAS that delivers Synology's renowned DSM experience, while noting its limited CPU power and lack of expandability compared to higher-end models.
Everyday users appreciate the straightforward setup, quiet operation and dependable performance for everyday backup and media streaming, but are disappointed by the fixed RAM and modest processor.
“"Dual native 10 GbE and 2.5 GbE ports for high-bandwidth connectivity"”

“"Web UI can be sluggish, especially during initial configuration"”

“"Quiet operation at 22 dBA with smart fan control"”

