The Smallest 802.3bt PoE++ Switch  PLANET GSD-504UP is the smallest unmanaged Gigabit PoE switch equipped with two 802.3bt PoE++ ports, two 802.3at PoE+ ports and one uplink port. With a total PoE power budget of 120 watts and non-blocking data switching performance, the GSD-504UP can fulfill the demand of sufficient PoE power for different applications.   Plug and Play High Power Sourcing Solution  Complying with the IEEE 802.3bt Power over Ethernet Plus Plus technology, the GSD-504UP provides up to 90 watts of PoE output power, tripling that of the earlier 802.3at plus. With the Legacy function enabled via the DIP switch, it can be backward compatible with 802.3af/at PoE standards to allow users to flexibly deploy standard and high powered devices simultaneously with no need of software configuration. With data and Power over Ethernet from one unit, the GSD-504UP can reduce cable deployment and eliminate the need for dedicated electrical outlets on the wall, ceiling or any unreachable place.   Environment-friendly, Fanless Design for Silent Operation The GSD-504UP comes with a desktop-sized, compact metal housing, making the placement of the unit convenient. It features a ventilated construction in which a cooling fan is not necessary, thereby making its operation noiseless. Moreover, the GSD-504UP is able to operate reliably and stably in any environment without affecting its performance. The deployment of PoE PDs with constant power feeding can be easily and quickly done.   Robust Protection The GSD-504UP protects against the ESD 6KV surge to improve product stability and also protects users’ networks from devastating ESD attacks, making sure the flow of operation does not fluctuate.   Ideal Solution for SOHO to Have IP Surveillance Secure As IP surveillance is in great demand, the GSD-504UP PoE++ Switch is also best used as a Surveillance Switch to supply PoE power to PoE IP cameras without requiring an extra cabling or electrical outlet, making the deployment of cameras quick and convenient. The GSD-504UP supports two 802.3bt PoE ++ ports and two 802.3at PoE+ ports along with four 10/100/1000BASE-T ports featuring up to 90 or 30 watts, and one extra Gigabit Ethernet TP interface supporting high-speed transmission of surveillance images and videos.