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Amazon.com: ZYXEL 50-Port PoE Switch Gigabit Ethernet Smart (GS1900-48HPV2) - Managed, with 24x PoE+ @ 170W, 2X SFP, Rackmount, Limited Lifetime Protection : Electronics
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ZYXEL Communications Corp. XGS4600-52F-ACD ZYXEL 48-port GbE L3 Managed Fiber Switch with 4 SFP+ Uplink
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