Smart Managed Plus SOHO (small offices and home offices) ??? No description found specific to Netgear switches Smart Managed Pro switches provide even more features, with Access Control Lists, Spanning Tree and SNMP that you won't find on Plus versions. Often with IPv4/IPv6 Layer 3 Static Routing, the Pro versionsbring more enterprise-class networking to budget-aware SMBs. Multi-language support ( English, German (Deutsch), Japanese (日本語).) was added to the GS308E with the first v1.0.0.3 in June or July 2019 firmware release, following the initial factory defailt v1.0.0.1 from March 2019. The GS305E data sheet does clearly mention Energy Efficient Ethernet (IEEE 802.3az) compliant Yes. Note: There might be no controls to disable this feature on either model.