Can I stack each two of the four 25G ports for two separate DG-S6120 switches?

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• Does the DG-S6120 series have 25G SFP28 ports?

  Yes, this series offers full port types, with 24 10G optical ports, four 25G SFP28 ports that are backward compatible with 10G and two 40G QSFP+ uplink ports.

• Does the DG-AP680-AX3000-S outdoor access point support external antennas?

  The DG-AP680-AX3000-S IP68 outdoor and indoor access point has integrated sector antennas. It does not support external antennas.

• Are the 10G SFP+ ports of this series backward compatible?

  Yes, the 10G optical ports of this series are compatible with 1G optical modules.

• How is loop detection performed in DG-S5300K and DG-S5310 series?

  This series adopts the Rapid Link Detection Protocol (RLDP), a link detection protocol integrated by Data General for fast Ethernet link failure detection. Most Ethernet link detection mechanisms detect link connectivity by automatically negotiating ...

• Which fan modules and power modules should I purchase for a DG-S6120 series switch?

  This series comes with fully loaded fan modules. Power modules must be purchased by the customer, although usually it is already offered with one or even two power supplies.