Cisco ISR4331/K9 Router ISR4331 - NO CPU CLOCK ISSUE

DESCRIPTION:
The Cisco ISR4331/K9 is a powerful integrated services router from Cisco’s ISR 4000 Series, designed for small to medium-sized branch offices. It delivers enterprise-class security, unified communications, and application optimization on a modular platform. With a performance range of up to 100 Mbps by default (upgradable via performance licenses), it provides scalable throughput to support growing bandwidth needs. The ISR4331/K9 supports voice, video, data, and wireless services, making it a flexible and cost-effective solution for modern branch networks.

TECHNICAL SPECIFICATIONS:
Manufacturer: Cisco Systems
Model Number: ISR4331/K9
Performance: Up to 100 Mbps (default), upgradable to 300 Mbps with performance licenses
WAN Ports: 2 integrated 10/100/1000 Ethernet ports
LAN Ports: 3 integrated 10/100/1000 Ethernet ports
Memory: 4 GB DDR3 (upgradeable to 16 GB)
Flash Storage: 4 GB (upgradeable to 16 GB)
Expansion Slots: 2 Network Interface Module (NIM) slots, 1 Integrated Services Module (ISM) slot
Integrated Power Supply: Internal, AC power
Rack Mountable: Yes (1RU)
Management: Cisco IOS XE, CLI, Web GUI, SNMP
Security Features: Integrated zone-based firewall, VPN support (IPSec, DMVPN, FlexVPN), control plane protection
Voice Support: Supports Cisco Unified Communications (optional licenses required)
Dimensions: 17.2 x 17.5 x 1.75 in (437 x 445 x 44 mm)
Weight: Approximately 11.5 lbs (5.2 kg)