Fast dispatch and helpful advice before we placed a multi-site order. Pricing was clear and the product arrived ready for install.
Wesley G.
Grandstream GWN7812P 16-Port Gigabit Enterprise Layer 3 Managed PoE Network Switch
- 16 × Gigabit Ethernet PoE+ ports
- 4 × Gigabit SFP uplink ports
- Enterprise Layer 3 managed switching and routing
- IEEE 802.3af/at compliant PoE+ support
- Total PoE power budget up to 240W
- Advanced static and dynamic routing support
- Inter-VLAN routing capabilities
- VLAN segmentation and QoS prioritization
- ACL-based security and traffic control
- DHCP Snooping, ARP Inspection, and IP Source Guard
- IGMP Snooping and multicast optimization
- 802.1X authentication support
- IPv4 and IPv6 support
- Cloud management via GDMS Networking
- Local web GUI and CLI management
- Rackmount-ready enterprise metal chassis
Interfaces
- 16 × 10/100/1000 Mbps Gigabit RJ45 PoE+ ports
- 4 × Gigabit SFP uplink ports
- 1 × Console management port
PoE Specifications
- IEEE 802.3af / 802.3at compliant PoE+
- Total PoE budget: 240W
- Maximum 30W output per PoE port
- Intelligent dynamic PoE power allocation
Switching Performance
- Switching Capacity: 40Gbps
- Forwarding Rate: 29.76Mpps
- MAC Address Table: 16K entries
- Jumbo Frame Support: up to 9KB (grandstream.com)
Layer 3 Features
- Static routing
- Dynamic routing support
- Inter-VLAN routing
- RIP and OSPF support
- IPv4 and IPv6 routing capabilities
Layer 2 Features
- VLAN (802.1Q, Voice VLAN, MAC VLAN)
- STP / RSTP / MSTP
- Link aggregation (LACP)
- IGMP Snooping
- Port mirroring
- Loop detection and prevention
Security
- ACL (Access Control Lists)
- DHCP Snooping
- Dynamic ARP Inspection
- IP Source Guard
- 802.1X authentication
- RADIUS and TACACS+ support
- DoS attack prevention
- Storm control and port isolation
Management
- Embedded local web GUI
- CLI management
- GDMS cloud management
- GWN Manager support
- SNMP support
Physical
- Rackmount metal chassis
- Enterprise-grade cooling system
- Designed for SMB and enterprise installations
Trusted by trade buyers
"CLI Secure has been our go-to for Fortinet hardware and renewals. Fast delivery and knowledgeable support every time."

"We ordered Grandstream phones for a full office rollout. The trade pricing and next-day delivery saved us both time and budget."

"Very professional IT networking supplier. Their pre-sales team helped us spec the right firewall for a multi-site deployment."

"Great stock availability on Hikvision cameras. Everything arrived well packaged and on time. Will order again."

Built for B2B buying
From product selection to deployment, this is made for real projects.
Get the hardware, licences and supporting kit you need without chasing multiple suppliers. CLI Secure helps trade buyers confirm fit, stock, delivery and project pricing before checkout.
Better buying value
Why trade buyers choose CLI Secure
- Trade and bulk pricing support
- Compatibility advice before purchase
- UK delivery options and account support
- Hardware, renewals and accessories in one place
- Limited project advice
- Unclear warranty or channel source
- Harder to quote bundles and renewals
- Separate suppliers for accessories
- Less flexible fulfilment for mixed baskets
- More admin for repeat trade orders
Why choose us
Procurement that feels fast, clear and trade-ready.
Every product page is designed to help you move from shortlist to checkout with fewer unknowns.
Verified buyer feedback
Trusted by installers, resellers and IT teams.
CLI Secure helped us confirm the right supporting accessories and saved us a return. Good trade service.
Keith D.Reliable fulfilment for security hardware and renewals. The team understands what business buyers need.
Rania M.Common questions
Product and order FAQs
Can I request trade or bulk pricing?
Yes. For multi-unit, reseller or project orders, contact CLI Secure and our team can review the basket for trade pricing.
How quickly can this be delivered?
Available delivery options are shown at checkout. Many in-stock products support next-day or timed UK delivery.
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Yes. Share the existing setup, model numbers or project requirement and we can help confirm suitable hardware, licences or accessories.
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CLI Secure supplies hardware, renewals, licences and related accessories across networking, CCTV, VoIP and IT support categories.





