
SSK SSM-F200 2TB HDD
Score: 42/100
Synology DS223j 2-bay
Score: 70/100Rankings

The DS223j is a compact, diskless two-bay NAS that delivers the full DSM experience, RAID 1 redundancy and low power draw. It's ideal for basic file storage and backup, though its single-gigabit port and limited RAM keep it from handling demanding media tasks.

The SSK 2 TB Portable NAS is a battery-powered, Wi-Fi enabled storage device aimed at travelers and on-the-go users. It offers a built-in hotspot, multi-device streaming and easy app-based backups, but isn't suited for continuous home deployment.
| Attribute | ![]() | ![]() |
|---|---|---|
2 TBbest | — | |
1 | 2best | |
— | 1 Gbpsbest | |
— | 4best | |
— | 1 GBbest | |
| ↓ lower better | — | 16.31 Wbest |
| ↓ lower better | — | 18.2 dBbest |
1 years | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Security(1) | ||
OS Compatibility | iOS, Android, Windows, macOS, Linux | DSM |
Build & Design(3) | ||
Weight (kg) | 0.295 kg | 0.87 kg |
Power Supply Type | Li‑polymer battery | 60W AC adapter |
Warranty Period (years) | 1 years | 2 years |
Connectivity(2) | ||
Supported Network Protocols | Samba, DLNA, P2P | SMB,NFS,AFP,FTP,WebDAV,iSCSI,CIFS,HTTP/HTTPS,SNMP,LDAP,CalDAV,Kerberos |
USB Ports | 1 | 2 |
Storage & Capacity(3) | ||
Drive Bays | 1 | 2 |
RAID Support | None | RAID 0,1,Basic,Hybrid RAID,JBOD |
Supported Drive Types | HDD | 3.5" SATA HDD,2.5" SATA SSD |

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

Reviewers find it handy for travel and offline cloud-like use, praising its compact design and streaming, while warning about privacy-related app permissions and limited battery life.
Users love the portability and hotspot feature for trips, but many report iOS backup failures and concerns over the app's permissions and short battery runtime.

“Perfect for flights”

“Great for group trips”

“Useless with Mac/iPhone”




Professional reviewers view the DS223j as a solid successor to the DS220j, highlighting the faster Realtek quad-core CPU and polished DSM experience, but note the lack of tool-less drive bays and limited media-streaming capability.
Everyday users appreciate the straightforward setup, reliable file access, and the ability to replace cloud storage costs with a one-time purchase, while recurring complaints focus on the noisy fan during spin-down, limited RAM, and difficulties with H.265 video playback.