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HWIC-4A/S
4-Port Async/Sync Serial HWIC Cisco Router High-Speed WAN In...
Federal agencies and Fortune 500 operations source through ORM Systems.
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Enterprise Clients
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
HWIC-4A/S is a high-performance WAN module engineered for reliable high-speed connectivity in enterprise and service provider environments. Designed with a robust modular form factor, this card supports data rates up to 1Gbps via an RJ-45 connector and is fully compatible with leading router platforms, ensuring seamless integration into existing network infrastructures while supporting protocols such as TCP/IP and iSCSI.
This HWIC module is optimized for scenarios including upgrading router network interfaces and expanding the capacity of data centers. It installs in enhanced HWIC (EHWIC) slots and features advanced networking capabilities like auto-negotiation, jumbo frames, and QoS, making it an ideal solution for high-speed WAN connectivity in demanding operational environments.
HWIC-4A/S price is $578.00, a 66% saving from the Cisco list price of $1,700.00. HWIC-4A/S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for HWIC-4A/S for additional pricing. Browse the full Router Ehwic Wan Cards series or explore all Cisco products.
Scenario: A national retail chain leverages the Cisco HWIC-4A/S-4-Port Async/Sync Serial HWIC High-Speed WAN Interface card in ISR routers to terminate four fractional T1/E1 circuits per location, aggregating up to 8 Mbps of resilient WAN bandwidth. This modular interface card consolidates connectivity, reduces chassis count and accelerates deployment. Outcome: 40 % smaller hardware footprint, seamless provisioning, and SLA-driven scalability for high-availability branch networks.
Scenario: A utility operator installs the Cisco HWIC-4A/S-4-Port Async/Sync Serial HWIC High-Speed WAN Interface card on remote-site routers to support synchronous serial SCADA telemetry and host asynchronous dial-up modems for automatic failover. By combining sync and async ports in a single card, the solution streamlines site rollouts and minimizes points of failure. Outcome: Deterministic data delivery, instant backup activation, and 99.99 % uptime for mission-critical operations.
Scenario: A manufacturing plant deploys the Cisco HWIC-4A/S-4-Port Async/Sync Serial HWIC High-Speed WAN Interface card on ISR routers to directly onboard PLCs, HMIs and barcode scanners via four async serial ports—eliminating separate terminal servers. Centralized policy enforcement and secure WAN transport unify device management. Outcome: 25 % reduction in cabling complexity, improved maintenance efficiency, and standardized security compliance across the industrial network.
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| HWIC-4A/S |  HWIC-1ADSL-M |  EHWIC-4G-LTE-JP |  HWIC-1DSU-T1 |  HWIC-3G-GSM | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Network Module / Network Card | WAN Module | Network Module |
| Module Type | WAN | WAN | 4G LTE | WAN | WAN |
| Form Factor | Modular | Modular | EHWIC | Modular | Modular |
| Operating Temperature | 0 to 70°C | 0 to 55°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Compatibility | Cisco | Cisco | Cisco | Cisco | Cisco |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Product Name | HWIC-4A/S | HWIC-1ADSL-M | EHWIC-4G-LTE-JP | HWIC-1DSU-T1 | HWIC-3G-GSM |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
The HWIC-4A/S provides solid performance for serial connectivity. It's easy to set up and integrates perfectly with our existing router.
We use the HWIC-4A/S for serial communication. It works reliably, and installation was straightforward.
The HWIC-4A/S is a dependable solution for our serial network connections. It's been running smoothly with no issues.
This card provides excellent serial connectivity. The HWIC-4A/S has improved our network's reliability and made configuration easy.
The HWIC-4A/S offers solid, reliable performance. It's a great solution for expanding our serial communication capabilities.
The Cisco HWIC-4A/S is a High-Speed WAN Interface Card that provides four asynchronous or synchronous serial ports for Cisco ISR routers, enabling reliable WAN connectivity.
The HWIC-4A/S is fully compatible with Cisco 1800, 2800 and 3800 ISR series routers that feature a High-Speed WAN Interface Card slot.
Each serial port on the HWIC-4A/S supports data rates from 56 Kbps up to 2.048 Mbps for synchronous mode and up to 115.2 Kbps for asynchronous mode.
Yes. Each of the four ports on the HWIC-4A/S can be individually configured for synchronous or asynchronous operation to suit diverse network requirements.
The HWIC-4A/S supports industry-standard WAN protocols including PPP, HDLC, Frame Relay and X.25 on all four serial interfaces.
Power down the router, insert the HWIC-4A/S into an available HWIC slot, secure the module with the retention screw, then power up and configure via IOS.
The HWIC-4A/S measures 12.9 cm x 11.2 cm x 1.3 cm and weighs approximately 0.2 kg, fitting standard Cisco ISR chassis form factors.
No additional licenses are required; the HWIC-4A/S operates under the base IOS feature set for WAN connectivity.
Use standard RJ-45 to DB-60 or RJ-45 to DE-9 serial adapter cables rated for synchronous/asynchronous signaling.
In global configuration mode, select the interface (e.g., interface serial0/0/0), then apply 'encapsulation hdlc' or 'encapsulation ppp' as needed.
Cisco recommends a maximum cable distance of 15 meters for reliable synchronous or asynchronous serial communications.
Yes. The HWIC-4A/S meets RoHS, CE, FCC and UL safety and environmental compliance standards for global deployments.
The typical power draw is under 5 watts, depending on port activity and signaling mode.
Cisco provides a limited lifetime warranty on the HWIC-4A/S, covering defects in materials and workmanship under normal use.
Yes. The HWIC-4A/S supports Cisco IOS redundancy features like SSO and NSF when installed in dual-enabled ISR routers.
You can buy authentic HWIC-4A/S modules through Cisco authorized resellers, the Cisco online store or certified distribution partners.
United States
