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Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.

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Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.

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Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.

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Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.

Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
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Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.

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C3825-35UC-VSEC/K9 |
Description: | 3825 w/ PVDM2-64,NME-CUE,35 CME/CUE/Ph lic,Adv IP,128F/512D |
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Shipping as per your need
Same-day Shipping

Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.

Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.

International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines

Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.

Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.

Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
14-Day Money Back Guarantee
Free 14-Day Returns

Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.

Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.

Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement

Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.

Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.

RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
TRUSTED, TRIED, PROVEN







C3825-35UC-VSEC/K9 Overview
Overview of C3825-35UC-VSEC/K9
C3825-35UC-VSEC/K9 is a modular enterprise router engineered with a robust architecture that combines integrated security services and unified communications with voice capabilities. It supports versatile power options via an AC power supply (with redundancy available in select configurations) and provides a mix of WAN and LAN interfaces designed for high-throughput, reliable connectivity in branch-office environments.
This router’s integrated services include advanced VPN capabilities (IPSec and SSL VPN), firewall and intrusion prevention, while its modular slots (two available NIM/EHWIC slots) allow for tailored interface upgrades. Designed for performance and redundancy, the C3825-35UC-VSEC/K9 is optimized for demanding enterprise use cases where secure voice, data, and video services must coexist on a single platform.
What is the price of C3825-35UC-VSEC/K9?
Lowest price of C3825-35UC-VSEC/K9 is $ 0.00. Shop now discounts with bulk quotation for C3825-35UC-VSEC/K9
C3825-35UC-VSEC/K9 Specifications
Product Type | Enterprise Router |
VPN Support | IPSec / SSL VPN |
Power Source | AC Power Supply / Redundant |
Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
Broadband | N/A |
Architecture | Modular |
WAN Configuration | Dual WAN |
WAN Ports | 2 WAN |
LAN Ports | 4 LAN Ports |
Ethernet Technology | 10/100/1000 |
Wi-Fi Standard | N/A |
Connectivity Type | Wired |
Network Protocols | IPv4 / IPv6 |
Remote Management | SSH / Telnet / SNMP |
Compliance Standards | FCC / CE |
Wireless Support | No |
Speed/Capacity | Gigabit |
Firewall Features | Yes |
Features | Mesh / VPN / Voice / IPv6 Compatible / Firewall |
Use Case | Enterprise |
Management | Managed |
Form Factor | Rack-mount |
Integrated Services | Voice / WAN Optimization |
High Availability Support | Supported |
Safety | N/A |
EMC | N/A |
Telecom | N/A |
Throughput Capacity | 0.035 Gbps |
QoS Features | Supported |
Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection |
Expansion Slots | NIM |
Modular Slots Available | 2 Slots |
Stacking Capability | No |
5G Support | No |
Memory | 512 MB |
Flash Memory | 128 MB |
Interface Ports | RJ-45 / SFP |
Power | 250W |
Device Type | Router |
Product Name | Cisco 3825 Integrated Services Router (C3825-35UC-VSEC/K9) |
Height | 1.7 inches |
Width | 19 inches |
Depth | 18 inches |
Weight | 25 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.







Product Comparison Table
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Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
Connectivity Type | Wired / Wireless | Wired | Wired / Wireless / Ethernet | Ethernet | Wired |
Broadband | N/A | N/A | N/A | LTE | Fiber Optic / DSL |
Power Source | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply with Redundant Option | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant |
Architecture | Fixed | Modular | Fixed | Modular | Modular |
WAN Configuration | WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
WAN Ports | 1 WAN | 2 WAN | 2 WAN | 1 WAN | 2 WAN |
LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 8 LAN Ports |
Ethernet Technology | 10/100 Ethernet | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
Wi-Fi Standard | 802.11b/g/n | N/A | WiFi 6 (802.11ax) | N/A | WiFi 6 |
Wireless Support | Yes | No | Yes | No | No |
Speed/Capacity | 100 Mbps | Gigabit | Gigabit | Gigabit | Gigabit |
Routing Protocols Supported | - | - | - | - | - |
VPN Support | IPSec / SSL | IPSec / SSL VPN | IPSec / SSL VPN / DMVPN / FlexVPN / N/A | IPSec / SSL VPN | IPSec / SSL VPN |
Firewall Features | Yes | Yes | Yes | Yes | Yes |
Features | VPN, Firewall, NAT, QoS, Routing, Switching | Mesh / VPN / Voice / IPv6 Compatible / Firewall | VPN, Voice, Video, IPv6 Compatible, Firewall, POE, Integrated Services | VPN / IPv6 Compatible / Firewall | VPN, IPv6 Compatible, Firewall, MPLS |
Use Case | Small Business / Enterprise Branch | Enterprise | Enterprise / Branch Office | Enterprise | Enterprise |
Management | Managed | Managed | Managed | Managed | Managed |
Form Factor | Rack-mount / Desktop | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
Integrated Services | Voice / Video / WAN Optimization | Voice / WAN Optimization | Voice, Video, WAN Optimization | Voice / WAN Optimization | Voice / Video |
High Availability Support | Supported | Supported | Supported | Supported | Supported |
Throughput Capacity | 100 Mbps | 0.035 Gbps | 1 Gbps | 1 Gbps | 10 Gbps |
QoS Features | Supported | Supported | Supported | Supported | Supported |
Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection |
Expansion Slots | EHWIC | NIM | EHWIC, NIM | SFP+ | SFP+ |
Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 3+ Slots |
Stacking Capability | No | No | Yes | Yes | Yes |
5G Support | No | No | No | No | No |
Memory | 256 MB | 512 MB | 4 GB | 1 GB | 4 GB |
Flash Memory | 128 MB | 128 MB | 1 GB | 256 MB | 512 MB |
Interface Ports | RJ-45, SFP | RJ-45 / SFP | RJ-45, SFP, Combo Ports | RJ-45, SFP | RJ-45 / SFP+ |
Device Type | Router | Router | Router | Router | Router |
Product Name | Cisco C881SRSTW-GN-E-K9 Integrated Services Router | Cisco 3825 Integrated Services Router (C3825-35UC-VSEC/K9) | ISR4461-AX/K9 | C1117-4PLTEEAWE | NEDMHOST1200 Enterprise Modular Router |
Height | N/A | 1.7 inches | N/A | N/A | 4 inches |
Width | N/A | 19 inches | N/A | N/A | 17 inches |
Depth | N/A | 18 inches | N/A | N/A | 17 inches |
Weight | N/A | 25 lbs | N/A | N/A | 25 lbs |
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