This device lets you use any 48V PoE source (including Passive PoE, Telecom PoE, 802.3af and 802.3at) to power Passive 24V BOARD devices. Simply plug any 48V PoE powered Ethernet cable into one port, and any 8-30V capable Passive 24V BOARD device into the other. This device is capable to provide high power output - up to 24W (up to 1A at 24V). You can power it with virtually any 42-57V PoE solutions available on market today (Passive, Telecom, 802.3af and 802.3at PoE plus supported). Note: In case if 803.3af compliant PSE is used, total output power should not exceed 12.95w (limited by the 803.3af standard). Support international standard IEEE802.3 af/at(30W); POE port Support 10/100/1000M data transmission PD support 44V-57V voltage transmission,Automatically detects power supply from PSE power supply module 24V/1A power output using RJ45 Support the isolation circuit protection,can effectively protect electrical equipment. Support the short circuit,overvoltage protection 1500V high voltage isolation Transfer Rate: 10/100/1000Mbps Power Input: 52V DC /0.6A Power Output: 24V/1A Standard: IEEE802.3 af/at (30W) Interface Type: 1 Input RJ45 port,1/2(+),3/6(-);4/5(+),7/8(-) 1 output RJ45 port, 4/5(+),7/8(-) LED: Yellow 24V lamp Green Class 4 lamp Standard: IEEE 802.3 I, IEEE 802.3 u, IEEE 802.3 x, IEEE 802.3 af/at Temperature: Work within -40~70℃,Storage within -40~85℃ Humidity: Work within 10%~90% (Non-condensing), Storage within 5%~95% (Non-condensing) Dimension: 38.7 x 2.8 x 2.3cm Weight: 0.16kg Color: Black Material: plastic Package Contents: 2 x Gigabit PoE Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.