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by Cisco
Product Line: Cisco Cisco 3900 Series
Product Type: Router
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Original price $0.00 - Original price $0.00
Original price
$0.00 - $0.00
Current price $0.00
Title: Surplus

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Product Description

The C3925-VSEC/K9 Cisco integrates a 3U desktop modular form factor, designed for wired connectivity and compliance with IEEE 802.3, IEEE 802.1Q, IEEE 802.1ah, and IEEE 802.1ag standards. It supports various interfaces including 1 x console - RJ-45, 1 x auxiliary - RJ-45, 2 x 4 pin USB Type A, and 2 x SFP (mini-GBIC), alongside 64 digital ports and encryption via the SSL algorithm. The device features internal power supply requirements of AC 120/230 V and 50/60 Hz frequency, with dimensions of 18.7 in width, 17.2 in depth, and 5.2 in height, weighing 39 lbs.

FAQs for the C3925-VSEC/K9

  • What is the form factor of this networking device?
    The device has a desktop - modular - 3U form factor.
  • How does the device connect to networks?
    It utilizes a wired connectivity technology.
  • Which standards does the device comply with?
    It is compliant with IEEE 802.3, IEEE 802.1Q, IEEE 802.1ah, and IEEE 802.1ag standards.
  • Can I monitor the device's status through LEDs?
    Yes, the device features LED status lights indicators for link activity and power.
  • How many digital ports does the device support?
    The device supports 64 digital ports.
  • What type of protocols and specifications does it follow?
    It follows the ITU T.38 protocol and specifications.
  • What types of router interfaces are available on this device?
    It includes 1 x console - RJ-45 for management, 1 x auxiliary - RJ-45 for serial, 2 x 4 pin USB Type A, and 2 x SFP (mini-GBIC) interfaces.
  • How many expansion slots are available and how many are free?
    There are 4 EHWIC slots (all free), 4 PVDM slots (3 free), 2 CompactFlash Card slots (1 free), and 1 ISM slot (1 free).
  • What are the power requirements for this device?
    The device requires AC 120/230 V and a frequency of 50/60 Hz.
  • What encryption algorithm does the device use?
    It uses the SSL encryption algorithm.

Product Review

The CISCO C3925-VSEC/K9 offers a wide range of connectivity options, including wired technology compliant with IEEE standards, diverse router interfaces like USB, SFP, and serial ports, and ample expansion slots for EHWIC, PVDM, CompactFlash, and ISM, making it a versatile choice for network engineering needs. However, its form factor, a 3U desktop modular design, alongside a weight of 39 lbs, may limit its deployment in environments with space constraints. Additionally, while the device supports SSL encryption, network engineers might find the lack of more advanced encryption standards a limitation for certain high-security applications.


The CISCO C3925-VSEC/K9 offers a comprehensive solution for enterprise networks, providing high-capacity voice, video, and data capabilities. This model, encapsulated in a desktop form factor and standing at 3U tall, is designed for modularity and scalability, ensuring it can adapt to the evolving needs of modern businesses. Its connectivity is based on wired technology, ensuring reliable and high-speed data transmission. This router is compliant with several important IEEE standards, including IEEE 802.3 for Ethernet, IEEE 802.1Q for VLAN tagging, IEEE 802.1ah for provider backbone bridges, and IEEE 802.1ag for connectivity fault management. These standards ensure that the device can operate efficiently in a wide range of network environments and with various network devices. Key features include: - LED status lights indicators for link activity and power, providing at-a-glance system monitoring. - Support for 64 digital ports, enhancing its capacity for voice and other digital communications. - Adherence to the ITU T.38 protocol, facilitating reliable fax over IP networks for business communications. The router offers diverse interfaces for management, data, and connectivity purposes: - A console port and an auxiliary port, both RJ-45, for management and serial connections respectively. - Two USB ports for external storage and other peripherals. - Two SFP (mini-GBIC) slots for fiber optic network modules. Expansion capabilities are a key strength of the CISCO C3925-VSEC/K9. It features: - Four Enhanced High-Speed WAN Interface Card (EHWIC) slots, all available for use. - Four packet voice DSP module (PVDM) slots, with three free for expansion. - Two CompactFlash card slots for additional storage, with one slot currently available. - One Internal Services Module (ISM) slot, free for further customization. The device's internal power supply supports a broad range of AC voltages from 120 to 230 V and is designed to operate at both 50 and 60 Hz, making it versatile for global use. Its dimensions and weight—18.7 inches in width, 17.2 inches in depth, 5.2 inches in height, and a weight of 39 lbs—reflect its substantial capabilities and robust construction. Security is a paramount concern, and the CISCO C3925-VSEC/K9 addresses this with built-in support for SSL encryption algorithms. This ensures that all data passing through the router is protected against interception and unauthorized access, safeguarding sensitive information. In summary, the CISCO C3925-VSEC/K9 is a powerful and flexible networking solution designed for enterprise environments requiring high performance, reliability, and security. Its wide range of features and expansion options make it an ideal choice for businesses looking to invest in a network infrastructure that can grow with their needs.


Part Number and ManufacturerCISCO C3925-VSEC/K9
Configuration TypeDesktop, modular, 3U size
Network Connection TypeWired
Standards ComplianceIEEE 802.3, IEEE 802.1Q, IEEE 802.1ah, IEEE 802.1ag
Indicator LEDsLink activity, power status
Number of Digital Ports64
Supported Protocols & StandardsITU T.38
Management Port1 x RJ-45 console
Auxiliary Port1 x RJ-45 serial
USB Ports2 x USB Type A, 4-pin
Optical Network Ports2 x SFP (mini-GBIC)
HWIC Slots Availability4 slots, 4 available
PVDM Slots Availability4 slots, 3 available
CompactFlash Slots Availability2 slots, 1 available
ISM Slot Availability1 slot, 1 available
Power Supply TypeInternal
Power RequirementsAC 120/230 V
Operational Frequency50/60 Hz
Unit Width18.7 inches
Unit Depth17.2 inches
Unit Height5.2 inches
Unit Weight39 pounds
Encryption SupportSSL

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