Zyxel USG FLEX 100H hardware firewall 3 Gbit/s

Manufacturer: Zyxel | Model: USGFLEX100H-EU0101F | Product ID: 1800
£579.93 (inc. VAT)
2 in stock
100% Money Back Guarantee - Risk Free

Product Technical Specification

Data transmission
Firewall throughput3
VPN throughput0.75
IPS/IDS throughput1500
Performance
Heat dissipation40.365
Network
VPN tunnels quantity50
Number of VLANs16
Security
VPN supportIKEv2, IPSec, SSL
Ports & interfaces
Connectivity technologyWired
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity1
Ethernet LAN (RJ-45) ports8
Ethernet LAN data rates10,100,1000
Console portRJ-45
Power
Input current2
DC input voltage12
Power consumption (max)17
Certificates
Compliance certificatesBSMI,CE,Federal Communications Commission (FCC),Low Voltage Directive (LVD)
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-30 - 70
Operating relative humidity (H-H)10 - 90
Storage relative humidity (H-H)10 - 90
Weight & dimensions
Width216
Depth143
Height33
Weight1040
Packaging data
Package width278
Package height189
Package depth99
Package weight1620
Packaging content
Cables includedPower
Other features
Firewall throughput3000
VPN throughput750

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Business Express
£6.95
Business Express

Business Express

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
USG FLEX H series provides secure, fast protection with ground-breaking high performance for Virtual Private Networks (VPN) and Unified Threat Management (UTM), a multi-layered approach to protecting the Firewall, the network infrastructure and connected users by leveraging Zyxel’s high-performance hardware and state-of-the-art AI Security Cloud architecture.

Ultra High Performance
Ultra-high Performance powered by our next-generation multi-core hardware and Fastpath technology to create ultra-high efficiency. The USG FLEX H series can boost performance by up to 3x, optimizing utilization of its processors and allowing Zyxel to deliver superior performance to satisfy the needs required by demanding and high-speed networks.

Port Flexibility, Multi-G and PoE+
With 2.5 Gbps and 10 Gbps Port Speed options, The USG FLEX H also features software-defined ports, allowing you true flexibility in the configuration and tailoring of each USG FLEX H as required (WAN or LAN).

The USG FLEX H offers up to 2 x 30W PoE+ integrated ports* to help reduce complexity by simplifying installations and reduce install costs by allowing you to power devices like 5G Routers, latest WiFi, or appliances like VoIP Phones directly from the USG FLEX H itself.

Hassle free network management with nebula.
Utilizing nebula, Zyxel’s centralised cloud management platform you can configure and deploy network and security devices centrally.

You can manage multiple devices and bring the information from them together, combining it to create a more effective defensive ring around the network.

AI-powered cloud cybersecurity.
Network security constantly evolves to meet the demands of an ever-changing working environment. Block malicious threats and restrict inappropriate user behaviours. The USG FLEX H series leverages AI-powered cloud intelligence to operate multi-layered protection such as sandboxing, anti-malware, DNS/IP/URL filtering, IPS, and application patrol over your premises.

Our new Fast and Powerful uOS.
The USG FLEX H series introduces our latest powerful uOS (Operating System). It is designed to increase security, minimize system response time, apply configuration changes instantly and optimize configuration and security policy management with its new intuitive UX (User Experience) design.

Data transmission
Firewall throughput3
VPN throughput0.75
IPS/IDS throughput1500
Performance
Heat dissipation40.365
Network
VPN tunnels quantity50
Number of VLANs16
Security
VPN supportIKEv2, IPSec, SSL
Ports & interfaces
Connectivity technologyWired
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity1
Ethernet LAN (RJ-45) ports8
Ethernet LAN data rates10,100,1000
Console portRJ-45
Power
Input current2
DC input voltage12
Power consumption (max)17
Certificates
Compliance certificatesBSMI,CE,Federal Communications Commission (FCC),Low Voltage Directive (LVD)
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-30 - 70
Operating relative humidity (H-H)10 - 90
Storage relative humidity (H-H)10 - 90
Weight & dimensions
Width216
Depth143
Height33
Weight1040
Packaging data
Package width278
Package height189
Package depth99
Package weight1620
Packaging content
Cables includedPower
Other features
Firewall throughput3000
VPN throughput750

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Buykingston order despatch times:

We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.

Despatch times do not apply to UK public holidays.

Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.

Our warehouse reserves the right to upgrade the delivery method you select on your order.

Our available delivery options*

Contact us for a shipping quote.

*All delivery times are estimated unless stated.

Product Returns Note

Buykingston offers a simple, hassle-free returns policy. If for whatever reason you are not happy with the item purchased, you can return it to us within 14 days of receipt for a refund. This applies to items purchased direct through Buykingston only.

Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If an item has been opened for inspection but shows signs of use beyond that, a deduction may apply to reflect the reduced value — see our full Terms & Conditions (Section 12) for details.

Some items are excluded from our money-back guarantee unless they have developed a fault. These include:

- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with custom logos on them, e.g. USB flash drives and memory cards with your own logo

Returns FAQs

What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked items.

How do I go about returning my order?
Please contact us via our contact page with your order number. We will provide you with an RMA number and return instructions, including your return deadline and whether a freepost label applies to your order.

Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.

Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we understand you may no longer have the original packaging.

Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable return postage, or provide a freepost label where available. If you are returning an item for another reason (including simply changing your mind), you are responsible for return postage unless we have expressly confirmed a freepost label in your RMA email — we recommend using a tracked and insured service for items of significant value.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer directly for assistance.

Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.