Cisco ISR4331-V/K9 Router NO CPU CLOCK ISSUE ISR4331VK9

DESCRIPTION
The Cisco ISR4331-V/K9 is part of the Cisco 4000 Series Integrated Services Routers and includes the Voice Bundle, making it ideal for unified communications deployments. It combines routing, switching, security, and voice services into one compact platform. Designed for mid-size branch offices, it supports SIP, SRST, and Cisco Unified Communications Manager Express (CME) capabilities out of the box. The router offers modular scalability, strong encryption, and future-proof performance with support for software-defined WAN (SD-WAN).

TECHNICAL SPECIFICATIONS
Model: ISR4331-V/K9
Series: ISR 4000
Performance: Up to 100 Mbps (base) upgradable to 300 Mbps
Voice Support:
– PVDM4 slot for DSP module (voice/fax)
– Cisco Unified CME and SRST supported
– Supports SIP, H.323, and TDM voice interfaces (with appropriate NIMs)
Interfaces:
– 2 x 10/100/1000 Ethernet ports
– 1 x RJ-45 Console port
– 1 x USB 3.0 port
– 2 x Enhanced NIM slots
– 1 x Service Module (SM-X) slot
– 1 x ISC slot (Internal Services Card)
Memory:
– 4 GB default DRAM (upgradable)
– 4 GB Flash
Power Supply: Internal, AC
Software: Cisco IOS XE
Rack Mountable: Yes (1U)
Security: Integrated security features like zone-based firewall, VPN, and IPS