GSD-503 5-Port 10/100/1000Mbps Gigabit Ethernet Desktop Switch (Metal) The GSD-503 are 5-Port 10 / 100 / 1000Mbps Gigabit Ethernet switches in compact housing for easily desktop deployment. Providing 10Gbps non-blocking switch fabric as well as 8K MAC Address table, the GSD-503 support 802.3x full duplex flow control and also offer wire-speed packet transfer performance without risk of packet loss. The Gigabit ports with jumbo frame feature supported can handle extremely large amounts of data transmission in a secure topology linking to a backbone or high-power servers. All RJ-45 copper interfaces support 10 / 100 / 1000Mbps auto-negotiation for optimal speed detection through RJ-45 Category 3, 4, 5 or above cables. MDI / MDI-X auto detection is provided for direct wire connection to any Ethernet device without requiring crossover cables. Specification Model GSD-503 Hardware Specification Network Ports 5-Port 10/100/100Mbps RJ-45 with Auto-MDI / MDI-X Switch Architecture Store and Forward Switch fabric 10Gbps Address Table 8K entries Share data Buffer 112KB Flow Control Back pressure for half duplex, IEEE 802.3x Pause Frame for full duplex Dimensions (W x D x H) 155 x 86 x 26 mm Weight 0.42KG (Metal case) Power Requirement 12V DC, 800mA Temperature Operating: 0~50 Degree C, Storage -40~70 Degree C Humidity Operating: 10~90%, Storage: 5~95% (Non-condensing) Standards Conformance Regulation Compliance FCC Part 15 Class A, CE Standards Compliance IEEE 802.3 (Ethernet) IEEE 802.3u (Fast Ethernet)IEEE803.3ab (Gigabit Ethernet)IEEE 802.3x (Full-duplex flow control)