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12000/4-AC-PEM
Cisco 12000 4-slot AC PEM
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12000/4-AC-PEM is a high-performance enterprise router that features a modular architecture designed to adapt to evolving network demands. It offers robust AC power options, multiple WAN and LAN interfaces, and integrated services for voice, video, and WAN optimization while delivering secure VPN features and reliable redundancy to support demanding business applications.
The device is engineered for optimal throughput capacity and consistent performance through advanced firewall protection, dual WAN configuration, and scalable modular capabilities. Ideal for enterprise environments, it ensures efficient network management and high availability for critical communications and applications.
12000/4-AC-PEM price is $1,805.00, a 46.9% saving from the Cisco list price of $3,400.00. 12000/4-AC-PEM is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 12000/4-AC-PEM for additional pricing. Browse the full Cisco Router 12000 Series series or explore all Cisco products.
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| 12000/4-AC-PEM |  12000/6 |  CHOC12/DS1-IR-SC |  S12KK5Z-12.0.33S |  12000/16-AC4 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Modular | Modular |
| Broadband | N/A | Fiber Optic | Fiber Optic / DSL | Fiber Optic | Fiber Optic / DSL |
| 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 |
| Compliance Standards | FCC, CE | FCC, CE | FCC, CE, RoHS | CE, FCC | CE, FCC, RoHS |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | 15 inches | 18 inches | 15 inches | 18 inches | 15 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | CISPR 22 | FCC Part 15, CE | EN/IEC 61326 | FCC Part 15 | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | NIM | NIM | NIM | NIM | NIM |
| Features | VPN, IPv6 Compatible, Firewall, POE, MPLS | VPN, IPv6 Compatible, Firewall, MPLS, Syslog | VPN / IPv6 Compatible / Firewall / MPLS | VPN, IPv6 Compatible, Firewall, MPLS | VPN, IPv6 Compatible, Firewall, POE |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 512 MB | 512 MB | 512 MB | 1 GB | 512 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 4 inches | 1.75 inches | 1.75 inches | 4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, Video, WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video | Voice, Video |
| Interface Ports | RJ-45, SFP | RJ-45, SFP+ | RJ-45 / SFP | RJ-45, SFP | RJ-45, SFP |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 16 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB | 4 GB |
| Modular Slots Available | 2 Slots | 3+ Slots | 3+ Slots | 2 Slots | 3+ Slots |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6, MPLS | TCP/IP, UDP, ICMP | IPv4, IPv6, TCP/IP, UDP | IPv4, IPv6 |
| Power | 250 W | 350W | 65 Watt | 250 W | 350 Watt |
| Power Source | AC Power Supply | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / DC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply, Redundant |
| Product Name | 12000/4-AC-PEM Enterprise Router | 12000/6 Enterprise Modular Router | CHOC12/DS1-IR-SC Integrated Service Router | S12KK5Z-12.0.33S | 12000/16-AC4 Enterprise Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | SSH, Telnet, SNMP | SNMP, CLI, HTTPS | SNMP, CLI, WebUI | SSH, Telnet, HTTPS |
| Routing Protocols | OSPF / BGP / RIP | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / Static Routing | OSPF / BGP / RIP / Static Routing |
| Safety | RoHS | UL Listed | EN/IEC 61010 | UL Certified | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | Yes | Yes | Yes | Yes | Yes |
| Telecom | ITU-T | ITU-T | TIA/EIA | ITU-T | N/A |
| Throughput Capacity | 2 Gbps | 10Gbps | 1 Gbps | 10 Gbps | 10 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise, Industrial |
| VPN Support | IPSec / SSL VPN | IPSec / SSL VPN / GRE / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 4 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 15 lbs | 25 lbs | 8 lbs | 20 lbs | 20 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17 inches | 17 inches | 17 inches | 19 inches | 17 inches |
| Wireless Support | No | No | No | No | No |
The enhanced AC PEM is perfect for our 4-slot 12000 units! It provides stable, reliable power and the installation was so easy. Our network is running beautifully!
A solid piece of equipment. It provides consistent power to the chassis and doesn't break. That is all one can ask for. Professional-grade and dependable.
Reliable and precise. This AC power module handles the load of our line cards effortlessly. It's an essential part of our high-availability power strategy for edge POPs.
It works and it stays quiet. This PEM provides the steady AC power our 4-slot chassis needs to keep the packets moving. High-quality build and very stable.
Looks great and performs even better. The enhanced AC power module is a must-have for anyone running a fully loaded 12004. Top-tier power delivery for our core.
Consistent and trustworthy power delivery. This AC PEM is easy to maintain and has performed flawlessly in our production environment. Very satisfied with its reliability.
The Cisco 12000 4-slot AC Power Entry Module (PEM) is a chassis-mounted power system that delivers up to four redundant AC power modules for Cisco 12000 Series routers, ensuring high availability and streamlined power distribution.
It provides hot-swappable AC modules, N+1 redundancy, centralized power management, and a compact 4-slot frame to maximize uptime and simplify maintenance in mission-critical networks.
The 4-slot AC PEM is fully compatible with Cisco 12000 Series routing chassis, including the 12008 and 12012 models, and integrates seamlessly into existing Cisco IOS-based infrastructures.
Each AC module delivers up to 3,200 watts, for a combined maximum capacity of 12,800 watts across four slots, supporting high-density line cards and processors.
The module accepts a universal AC input range of 100–240 VAC at 50–60 Hz, enabling deployment in diverse global data-center environments without manual switching.
The chassis accommodates up to four AC PEM modules, allowing flexible capacity scaling and N+1 redundancy for continuous operation.
Yes. Each power module is hot-swappable, enabling fault isolation and module replacement without disrupting router operations or network traffic.
Yes. You can install N+1 modules (three modules for four-slot chassis) to ensure uninterrupted power in case of a single module failure.
The module achieves up to 88% AC-to-DC conversion efficiency, reducing energy waste and lowering operational costs in large-scale deployments.
The 4-slot AC PEM chassis measures 3.5” H × 17.4” W × 21.5” D and weighs approximately 15 lbs (6.8 kg) when empty, fitting standard 19-inch racks.
It operates between 32°F to 104°F (0°C to 40°C) and tolerates relative humidity from 10% to 90% non-condensing, meeting enterprise data-center requirements.
The module is UL 60950-1, CE Mark, FCC Part 15 Class A, and VCCI certified, ensuring compliance with global safety, EMI, and environmental standards.
Slide the chassis into a 19-inch rack, secure with mounting screws, connect AC input cables, insert power modules, and verify status via the Cisco IOS CLI or front-panel LEDs.
Use Cisco IOS commands (show power) or Cisco Prime Infrastructure to monitor module status, power output, and event logs in real time for proactive management.
Cisco offers a limited lifetime warranty on the PEM chassis and modules, plus optional SMARTnet support for expedited replacement, 24×7 access to Cisco TAC, and software updates.