HWIC-4B-S/T - Cisco High-Speed WAN Interface Cards Overview
HWIC-4B-S/T - Cisco High-Speed WAN Interface Cards is a genuine modular capacity expansion product from Cisco, a global name in networking whose platforms are used by enterprises, service providers and data-center operators alike. Belonging to the Cisco family, the HWIC-4B-S/T 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.
From a specification standpoint, it offers 4 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
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 ISDN BRI High-Speed WAN Interface Card Cisco Router High-Speed WAN Interface card”. 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-4B-S/T. 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-4B-S/T
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-4B-S/T Specification | |
| General | |
| Device Type | Voice / fax module |
| Form Factor | Internal |
| Modem | |
| Bus | HWIC |
| Connectivity Technology | Wired |
| ISDN Interface | ISDN BRI ST |
| Digital Ports Qty | 4 |
| Expansion / Connectivity | |
| Interfaces | 4 x ISDN BRI ST - RJ-45 |
| Compatible Slots | 1 x HWIC |
| Dimensions & Weight | |
| Width | 2.8 in |
| Depth | 4.8 in |
| Height | 0.7 in |
| Weight | 7.2 oz |
| Compatibility Information | |
| Designed For | Cisco 1841, 1905, 1921, 1921 4-pair G.SHDSL bundle, 1921 ADSL2+ Annex M Bundle, 1921 ADSL2+ Bundle, 1921 SEC T1 Bundle, 1941, 1941 Mobile Wireless, 1941 Security, 2801, 2801 Unified Communications Bundle, 2801 Unified Communications Bundle with Advanced Security, 2811, 2811 Unified Communications Bundle, 2811 Unified Communications Bundle with Advanced Security, 2811 WAN Application Acceleration Bundle, 2821, 2821 Branch Office in a Box Bundle, 2821 Secure WAN Optimization Bundle, 2821 Unified Communications Bundle, 2821 Unified Communications Bundle with Advanced Security, 2821 WAN Application Acceleration Bundle, 2821 WAN Optimization Bundle, 2851, 2851 Secure WAN Optimization Bundle, 2851 Unified Communications Bundle, 2851 Unified Communications Bundle with Advanced Security, 2851 WAN Application Acceleration Bundle, 2851 WAN Optimization Bundle, 2901, 2901 SRE Bundle, 2901 Voice Security and CUBE Bundle, 2911, 2911 Voice Security and CUBE Bundle, 2921, 2921 SRE Bundle, 2921 Voice Security and CUBE Bundle, 2951, 2951 SRE Bundle, 2951 Voice Security and CUBE Bundle, 3825, 3825 Branch Office in a Box Bundle, 3825 Secure WAN Optimization Bundle, 3825 SRST Voice Upgrades for HSEC Bundle, 3825 Unified Communications Bundle, 3825 Unified Communications Bundle with Advanced Security, 3825 WAN Application Acceleration Bundle, 3825 WAN Optimization Bundle, 3845, 3845 Branch Office in a Box Bundle, 3845 Unified Communications Bundle with Advanced Security, 3845 WAN Application Acceleration Bundle, 3845 WAN Optimization Bundle, 3925, 3925 SRE Bundle, 3925 Voice Security and CUBE Bundle, 3925E, 3925E Security Bundle, 3925E SRE Bundle, 3925E Voice Bundle, 3925E Voice Security and CUBE Bundle, 3925E Voice Security Bundle, 3945, 3945 SRE Bundle, 3945 Voice Security and CUBE Bundle, 3945E, 3945E Security Bundle, 3945E SRE Bundle, 3945E Voice Bundle, 3945E Voice Security and CUBE Bundle, 3945E Voice Security Bundle |
HWIC-4B-S/T - Product Notes
This listing is a specific SKU variant of the HWIC-4B-S/T 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-4B-S/T - 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-4B-S/T 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-4ESW. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
Model code: T = T regulatory domain (multi-country) - this suffix indicates the feature set, power, or regulatory variant of the HWIC-4B-S/T, which affects software licensing and regional compliance.
