We no longer carry UBIQUITI EDGESWITCH 12XSFP+ 4X10GB (4257815), but we found this replacement for you.
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The Ubiquiti UniFi® 2nd Generation PoE Gigabit Switch provides Gigabit PoE links to your RJ45 Ethernet devices and Gigabit fiber uplink options to your enterprise network. It is a configurable Gigabit Layer 2 switch with sixteen Gigabit Ethernet ports