Cisco EHWIC-1GE-SFP-CU | Single-Port RJ-45 10/100/1000Base-T 1 x dual mode SFP Port Enhanced High-Speed Wireless Interface Card for 1921 ISR/ 1941 ISR Router

Technical Specifications:
- Data Link Protocol: Gigabit Ethernet
- Interface Type: Expansion module
- Connectivity Technology: Wired
- Cabling Type: Ethernet 1000Base-T, Ethernet 1000Base-X
- Data Transfer Rate: 1 Gbps
- Max Transfer Distance: 328 ft
- Expansion Slots: 1 x SFP (mini-GBIC)
- Compatible Slots: 1 x EHWIC
- Status Indicators: Link activity, link OK, status
- Features: Auto-negotiation, VLAN support, IPv6 support, Quality of Service (QoS), Jumbo Frames support, Link Fault Signaling (LFS), Class of Service (CoS), Weighted Random Early Detection (WRED)
- Compliant Standards: IEEE 802.1Q, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z

Helpful Notes:
- The EHWIC-1GE-SFP-CU provides a high-speed WAN interface for Cisco Integrated Services Routers (ISR).
- The module supports both copper and fiber connectivity options.
- It is hot-swappable, allowing for easy installation and removal without powering down the router.