This is a Planex 5-port 2.5G BASE-T switching hub. The included accessories are everything shown in the image (no box). Please understand that this is a used item before purchasing. Below is a specification summary by AI. [Product Name] Planex 5-port 2.5G BASE-T Switching Hub (FX2G-05EM) [Product URL] https://www.planex.co.jp/products/fx2g-05em/ [Overview] An unmanaged switching hub with all 5 ports supporting 2.5Gbps. This model can speed up wired networks in homes and offices from 1Gbps to a maximum of 2.5Gbps. [Supported Standards] ・IEEE 802.3bz (2.5GBASE-T) ・IEEE 802.3ab (1000BASE-T) ・IEEE 802.3u (100BASE-TX) ・IEEE 802.3x (Flow Control) [Ports] ・RJ-45 × 5 (All ports support 2.5Gbps) [Transfer Speed] ・100 Mbps / 1000 Mbps / 2.5 Gbps (theoretical value) [Features] ・High-speed data communication is possible with all ports supporting 2.5Gbps ・Fanless design for quiet operation ・Supports jumbo frames (up to 12 KB) ・Auto MDI/MDIX support (no crossover cable required) ・Loop detection/prevention function [Power & Physical Specifications] ・Power: DC 12V 1.0A (AC adapter included) ・External dimensions: Approximately 160 × 26 × 110 mm ・Weight: Approximately 460 g [Usage] ・Building a high-speed wired LAN between 2.5GbE compatible routers/NAS/PCs ・Resolving network bottlenecks [Feature Summary] ・Ideal for building high-speed wired networks with all 5 ports supporting 2.5Gbps ・Quiet fanless design ・Improved stability with jumbo frame support and loop prevention function ・Easy connection with Auto MDI/MDIX support