buy Switch D-Link DGS-1520-52MP/E 44 Port . The DGS-1520-52MP switch from D-Link is a device designed for professional environments requiring robust and efficient switching. It is a PoE cabinet switch with a standard 19" rack format and 1U height, ideal for integration into corporate network infrastructures or datacenters. It features a total of 48 Ethernet 10/100/1000BASE-T ports with PoE capability, allowing direct power supply to compatible devices such as IP phones, cameras, or Wi-Fi access points via the network cable, with a total power budget of 370 W (expandable to 740 W with a redundant power supply). Additionally, it includes 2 10GBASE-T ports and 2 10G SFP+ ports, providing high-speed connectivity for backbone or aggregation links, ensuring optimal bandwidth in high-performance networks. Its switching capacity reaches 188 Gbps, with an efficient store-and-forward architecture that ensures low latency and high reliability. Key technical features include support for a wide range of Ethernet standards, from 10BASE-T to 10 Gigabit Ethernet, flow control compatibility, energy efficiency per IEEE 802.3az, and a MAC table with up to 16,384 entries. Functionally, it incorporates multiple advanced Layer 2 and Layer 3 protocols and features, including extended VLANs (up to 4K VLAN groups), link aggregation, spanning tree (STP, RSTP, MSTP), QoS with prioritization and congestion control, extensive access control lists (ACLs), as well as security services for attack protection and advanced access management via 802.1X authentication, RADIUS, and TACACS+. Device management is comprehensive, with web interface, CLI, SNMP, IPv6 support, and modern features such as Zero Touch Provisioning (ZTP) and advanced diagnostics. Physically, it has a solid black construction, compact dimensions (441 x 308.5 x 44 mm), and weighs 4.8 kg, designed for discreet yet efficient operation in demanding work environments. Its power consumption is appropriate for its capacity and functionality, with differentiated modes depending on PoE activation, while acoustics and thermal dissipation are optimized to maintain system stability. Overall, the DGS-1520-52MP represents an advanced professional solution for network infrastructure requiring high PoE port density, 10G connectivity, and comprehensive management and security capabilities, suited to medium and large businesses with performance and reliability demands. Colour: BlackConnections: PoE x 1SFP+Ethernet LANVoltage: 100-240 V100 - 240 VProduct with plug: YesType of plug: Plug EUType: RackStackableNumber of slots: 2Power: 370 WForm factor: 1USafety: IGMP