Synology DS220j
Score: 50/100
Asustor AS6704T
Score: 79/100Rankings
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 DS220j is an entry-level two-bay NAS delivering a full DSM experience, solid performance for its price, and a broad app ecosystem, ideal for home users and small offices.
| Attribute | | |
|---|---|---|
32 TB | 88 TBbest | |
2 | 4best | |
1 Gbps | 2.5 Gbpsbest | |
4best | 4best | |
0.512 GB | 4 GBbest | |
| ↓ lower better | 12.46 Wbest | 35 W |
| ↓ lower better | — | 17.6 dBbest |
2 years | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(4) | ||
CPU Model | Realtek RTD1296 | Intel Celeron N5105 |
System Memory (GB) | 0.512 GB | 4 GB |
Ethernet Speed (Gbps) | 1 Gbps | 2.5 Gbps |
Power Consumption (Active) (W) | 12.46 W | 35 W |
Build & Design(3) | ||
Weight (kg) | 0.88 kg | 3.5 kg |
Power Supply Type | External 60W adapter | 90 W AC adapter |
Warranty Period (years) | 2 years | 3 years |
Storage & Capacity(4) | ||
Maximum Raw Capacity (TB) | 32 TB | 88 TB |
Drive Bays | 2 | 4 |
RAID Support | SHR, RAID 0, RAID 1, JBOD, Basic | Single, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
Supported Drive Types | 3.5" or 2.5" SATA HDD/SSD | 3.5"/2.5" SATA HDD/SSD |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praised the DS220j for its polished DSM operating system, impressive read/write speeds for a budget unit, straightforward setup, and comprehensive app ecosystem, while noting its hardware limitations such as a single LAN port, modest 512 MB RAM, and lack of HDMI or multi-gigabit networking.
Everyday users appreciate the DS220j's ease of use, low power consumption, and ability to serve as a reliable home cloud and media server, but many echo concerns about limited RAM, lack of HDMI, and the need to purchase drives separately.
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”
