HWIC-4ESW - Cisco High-Speed WAN Interface Cards Overview
HWIC-4ESW - Cisco High-Speed WAN Interface Cards is a genuine modular capacity expansion product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco family, the HWIC-4ESW unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
This unit follows the original factory specification for the Cisco family, covering its intended role without compatibility surprises. Standard mounting, cabling and management practices apply, and it interoperates with surrounding hardware using the same procedures as other Cisco equipment already deployed in the network.
Typical deployments include adding ports and performance to existing chassis systems, modernizing legacy platforms with compatible line cards, and mixing copper, fiber and high-speed uplinks in one chassis. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “4-port single-wide 10/100BASE-T Ethernet switch HWIC”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the HWIC-4ESW. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise Campus
High-density ports power users, phones and APs at the access layer.
Branch Office
Stackable units simplify branch deployment and management.
Wireless & IoT
PoE budget supports dense wireless and IoT endpoints.
Buying a Pre-Owned HWIC-4ESW
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
HWIC-4ESW Specification | ||
Target Applications | Data, voice, and video | |
Supported Router Platforms | ● Cisco 1800 (modular), Cisco 2800, and Cisco 3800 series integrated services routers: ● Cisco 1841 (supports HWIC-4ESW only; no PoE support) ● Cisco 2801 ● Cisco 2811 ● Cisco 2821 ● Cisco 2851 ● Cisco 3825 ● Cisco 3845 • Cisco 1941 • Cisco 2901 • Cisco 2911 • Cisco 2921 • Cisco 2951 • Cisco 3925 • Cisco 3945 | |
Form Factor | ● HWIC-4ESW = Single-wide HWIC form factor | |
Dimensions (W x D x H) | ● HWIC-4ESW = 3.08 x 4.74 x 0.76 in. | |
Weight | ● HWIC-4ESW = 79 grams (0.17 lb) | |
Standards | ||
RFC | RFC 2284, PPP Extensible Authentication Protocol (EAP) | |
MIBs | ● RFC 1213 ● IF MIB ● RFC 2037 ENTITY MIB ● CISCO-CDP-MIB ● CISCO-IMAGE-MIB ● CISCO-FLASH-MIB ●OLD-CISCO-CHASSIS-MIB ● CISCO-VTP-MIB ● CISCO-HSRP-MIB ● OLD-CISCO-TS-MIB ●CISCO-ENTITY-ASSET-MIB ●CISCO-ENTITY-FRU-CONTROL-MIB ● BRIDGE MIB (RFC 1493) | ●CISCO-VLAN-MEMBERSHIP-MIB ●CISCO-VLAN-IFINDEX-RELATIONSHIP-MIB ● RMON1-MIB ● PIM-MIB ●CISCO-STP-EXTENSIONS-MIB ● OSPF MIB (RFC 1253) ● IPMROUTE-MIB ●CISCO-MEMORY-POOL-MIB ● ETHER-LIKE-MIB (RFC 1643) ●CISCO-ENTITY-FRU-CONTROL-MIB.my ● CISCO-RTTMON-MIB ● CISCO-PROCESS-MIB ● CISCO-COPS-CLIENT-MIB |
Manageability | ● SNMP and Telnet interface support delivers comprehensive in-band management, and a CLI management console provides detailed out-of-band management. ● An embedded Remote Monitoring (RMON) software agent supports four RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis. ● A Switched Port Analyzer (SPAN) port can mirror traffic from one or many ports to another port for monitoring all nine RMON groups with an RMON probe or network analyzer. ● Trivial File Transfer Protocol (TFTP) reduces the cost of administering software upgrades by downloading from a centralized location. ● Network Timing Protocol (NTP) provides an accurate and consistent time stamp to all switches within theintranet. ● Two LEDs per port provide convenient visual indication of the port link and inline power status. ● Crash information support helps enable a switch to generate a crash file for improved troubleshooting. ● Show-interface capabilities provide information about the configuration capabilities of any interface. ● The Response Time Monitoring (RTTMON) MIB allows users to monitor network performance between the HWIC switch and a remote device. | |
Connectors and Cabling | ● 10BASE-T ports: RJ-45 connectors, two-pair Category 3, 4, or 5 unshielded twisted-pair (UTP) cabling ● 100BASE-TX ports: RJ-45 connectors; two-pair Category 5 UTP cabling | |
Indicators | ● Link status LED: One LED per port for indicating link status ● Inline power LED: One LED per port system for inline power status indication | |
Power Requirements | ||
Internal Power Supply | Optional PoE system power supply available for all Cisco 2800 and Cisco 3800 series routers | |
External Redundant Power Supply (RPS2300) | Optional for the Cisco 2800 series and Cisco 2900 Series routers | |
Internal Redundant Power Supply | For the Cisco 3845, 3925 and 3945 router only | |
DC Power Support | ● DC system power input available on the Cisco 2811/2911, Cisco 2821/2921, Cisco 2851/2951, Cisco 3825/3925, and Cisco 3845/3945 routers; PoE option not available with DC system power input | |
Software Support | ● Minimum Cisco IOS Software Release 12.3(8)T for 1841. 280 Series and 3800 Series routers: • Minimum Cisco IOS Software Release 15.0(1)M for Cisco 1900 Series, Cisco 2900 Series and | |
HWIC-4ESW - Product Notes
This listing is a specific SKU variant of the HWIC-4ESW family. Review the specifications above and confirm compatibility with your existing infrastructure, including software version, mounting, and interface requirements, before ordering.
For volume requirements we offer configuration checks and staged delivery options. Our team can confirm revision levels, software compatibility, and lead time before you place an order.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation.
HWIC-4ESW - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco module/line card expands the capability of a chassis platform, adding interface density, forwarding capacity, or service features. It is installed in a matching chassis slot and managed as part of the parent platform.
Deployment guidance: When planning this HWIC-4ESW unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: HWIC-ADSLI-B/ST, HWIC-1FE, HWIC-CABLE-D-2, HWIC-1ADSLI, HWIC-AP-AG-B. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
