Cisco WS-X4904-10GE= | 4-Ports 10/100/1000Base-T Ethernet Half Card Module for Catalyst 4900M Series

1. Interface Type: 10 Gigabit Ethernet
2. Data Transfer Rate: 10 Gbps
3. Cabling Type: Ethernet 10GBase-X
4. Connectivity Technology: Wired
5. Expansion Slots: 4 x SFP+ / SFP (mini-GBIC)
6. Compatible Slots: 1 x Expansion Slot
7. Max Transfer Distance: 300 m
8. Status Indicators: Port status, link activity, link OK, module status
9. Features: Full duplex capability, auto-negotiation, VLAN support, manageable, IPv6 support, Quality of Service (QoS), Jumbo Frames support, Link Fault Signaling (LFS), Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Access Control List (ACL) support, Quality of Service (QoS), Jumbo Frames support, Link Fault Signaling (LFS), Rapid Spanning Tree Protocol (RSTP) support, Multiple Spanning Tree Protocol (MSTP) support, Access Control List (ACL) support
10. Dimensions (WxDxH): 14.4 cm x 24.1 cm x 3.4 cm
11. Weight: 0.91 kg
12. Compliant Standards: IEEE 802.3ae

Helpful notes:
1. The Cisco Catalyst 4900-M Series is a high-performance, low-latency, and scalable platform that is ideal for space-constrained environments.
2. This expansion module offers advanced features such as QoS, ACL, and MSTP support, making it suitable for enterprise-level applications.
3. With its compact size and low power consumption, the WS-X4904-10GE= is a cost-effective solution for expanding network capacity.