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HP J9981A 1820-48G 48-Port + 4-Port SFP Layer 2 Switch
- 48 x 10/100/1000 Gigabit Ethernet ports
- 4 x SFP Gigabit Ethernet ports
- Layer 2 managed switching
- Simplified web-based management interface
- Supports VLANs, QoS, and Link Aggregation
- Energy-efficient design with low power consumption
Free U.S. Ground Shipping
Typically 1-2 handling + 3-7 transit days
Purchase orders accepted
For government, enterprise, data center, and small business customers.
Bulk Purchase Inquiry
Volume pricing and availability
Product Overview
The HP J9981A 1820-48G is a 48-port Layer 2 managed Gigabit Ethernet switch with 4 SFP ports. It is designed for small to medium-sized businesses seeking reliable, easy-to-manage network connectivity.
Technical Information
| Product Type | Layer 2 Switch |
| Number of Ports | 48 x Gigabit Ethernet, 4 x SFP |
| Management | Web-based GUI |
Additional Specifications
| Switching Capacity | 104 Gbps |
| Forwarding Rate | 77.4 Mpps |
| PoE Support | None |
Product Description
The HP J9981A 1820-48G is a managed Layer 2 Gigabit Ethernet switch designed to provide reliable and cost-effective network connectivity for small to medium-sized businesses. It features 48 auto-sensing 10/100/1000 Gigabit Ethernet ports, ensuring high-speed data transfer for connected devices such as computers, printers, and servers. The switch also includes four SFP (Small Form-Factor Pluggable) Gigabit Ethernet ports, which are ideal for creating high-speed uplinks to network backbones or connecting to other switches over longer distances using fiber optic transceivers. As a managed switch, the 1820-48G offers essential Layer 2 features that allow network administrators to control and optimize network traffic. These features include support for Virtual LANs (VLANs) to segment the network, Quality of Service (QoS) to prioritize critical traffic, and Link Aggregation Control Protocol (LACP) to combine multiple links for increased bandwidth and redundancy. The switch is managed through a user-friendly, web-based graphical interface, making it accessible even for administrators with limited networking expertise. This switch is built with an energy-efficient design, incorporating features like IEEE 802.3az Energy Efficient Ethernet to reduce power consumption during periods of low link utilization. Its fanless design on some models (check specific unit) contributes to quiet operation, making it suitable for deployment in office environments. The J9981A provides a solid foundation for businesses needing dependable Gigabit connectivity with basic management capabilities.



