Precise Protection. Flexible Subscription.
Introducing the latest USG Series-USG FLEX, delivering higher levels of performance and flexibility! USG FLEX's platform continue its tradition in providing the latest, leading technologies, all while providing a complete suite of security subscription with seamless, scalable gateway connectivity. We want to bring top of the line experience for all business owners!

Higher Precision Detection Uncovers Threats
Zyxel Security Cloud keeps learning from collecting threat information. USG FLEX series supports advanced Anti-Malware with cloud query express mode which expands billions of signatures. The cloud query with high detection rate helps verify the file hash within seconds.

Best Threat
Intelligence Alliance
To ensure your network on getting the best protection, USG FLEX integrates threat intelligence from leading companies and organizations in the cybersecurity field for scaled information about file and real-time threat data. By leveraging a wider malware coverage with multiple-sourced database, this increases the accuracy in threat detection. Web Filtering is also included to safeguard all internet access, especially with CTIRU (Counter-Terrorism Internet Referral Unit) to restrict access to terrorist materials online.

High Assurance
Multi-layered Protection
USG FLEX is designed with multi-layer protection against multiple types of threats from in and out. URL Threat Filter, Anti-Malware, and Intrusion Prevention block external attacks, while Application Patrol and Web Filtering empower you to restrict users' inappropriate application usage or web access, all together safeguarding your network without any unattended gaps.

Flexible
Subscription
for Your Need
USG FLEX security services turn your firewall into a comprehensive security solution. Add Unified Threat Management (UTM) and Hospitality bundled service to get the protection and connectivity that meet your network needs. You can also choose from a single license whenever you need, such as Web Filtering, Anti-Malware, SecuReporter Premium, and more.

Upgrade to Gain
Migrate without Pain
If you still get USG series licenses, now is the time to migrate! USG FLEX provides hassle-free license migration from USG series with auto migration. Upgrade to a whole new 6-in-1 UTM bundle license from your USG existing licenses for more comprehensive protection.

Zyxel USG Flex 100. Firewall throughput: 0.9 Gbit/s, VPN throughput: 0.27 Gbit/s. Heat dissipation: 42.65 BTU/h, Mean time between failures (MTBF): 989810 h. Security algorithms: IPSec, SSL/TLS, VPN support: IKEv2, IPSec, SSL, L2TP/IPSec. Console port: RJ-45, WAN connection: Ethernet (RJ-45). Input current: 2 A, Power consumption (max): 12.5 W

Firewall throughput	0.9 Gbit/s
VPN throughput	0.27 Gbit/s
Heat dissipation	42.65 BTU/h
Mean time between failures (MTBF)	989810 h
Number of VPN connections	100
Concurrent SSL/VPN connections (maximum)	30
VPN tunnels quantity	64
Number of VLANs	8
Security algorithms	IPSec, SSL/TLS
VPN support	IKEv2, IPSec, SSL, L2TP/IPSec
URL filtering	Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1
Ethernet LAN (RJ-45) ports	4
Console port	RJ-45
WAN connection	Ethernet (RJ-45)
Built-in fan	No
Input current	2 A
Power consumption (max)	12.5 W
Certification	DCC, CE, C-Tick, LVD
Operating temperature (T-T)	0 - 40 °C
Storage temperature (T-T)	-30 - 70 °C
Operating relative humidity (H-H)	10 - 90%
Storage relative humidity (H-H)	10 - 90%
Width	8.5" (216 mm)
Depth	5.8" (147.3 mm)
Height	1.3" (33 mm)
Weight	30 oz (850 g)
Package width	11.2" (284 mm)
Package height	7.48" (190 mm)
Package depth	3.94" (100 mm)
Package weight	3.09 lbs (1.4 kg)
Firewall throughput	900 Mbit/s
VPN throughput	270 Mbit/s
Harmonized System (HS) code	85176990