--- title: Preseem 20000 description: "1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. Capacity: 20 Gbit/s aggregate Management Interfaces: 1 GbE RJ-4" --- [Skip to content](https://docs.preseem.com/preseem-20000#main-content) English Show submenu for translations ![Preseem logo white-1.png\]](https://docs.preseem.com/hs-fs/hubfs/Preseem%20logo%20white-1.png?height=40&name=Preseem%20logo%20white-1.png) - [Aterlo Blog](https://preseem-467307.hs-sites.com/blog) Open main navigation Close main navigation - [Aterlo Blog](https://preseem-467307.hs-sites.com/blog) - English Show submenu for translations - Contact us Contact us Hi There! How Can We Help You? - There are no suggestions because the search field is empty. 1. [Help Center](https://docs.preseem.com/?hsLang=en) 2. [Hardware](https://docs.preseem.com/hardware?hsLang=en) 3. [Legacy Hardware](https://docs.preseem.com/hardware?hsLang=en#legacy-hardware) # Preseem 20000 ### Preseem 20000B 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 4 x SFP+ **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  ![Preseem 20000B](https://docs.preseem.com/hs-fs/hubfs/20000B.png?width=688&name=20000B.png) ### Preseem 20000C 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 4 x SFP+ with bypass and transceivers **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  ![Preseem 20000C](https://docs.preseem.com/hs-fs/hubfs/20000C.png?width=688&name=20000C.png) ### Preseem 20000E 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 2 x QSFP+ (40G)  **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  ![Preseem 20000E](https://docs.preseem.com/hs-fs/hubfs/20000E.png?width=688&name=20000E.png) ### Preseem 20000F 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 4 x SFP+,2 x QSFP+ (40G) **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  ![Preseem 20000F](https://docs.preseem.com/hs-fs/hubfs/Preseem%2020000F.png?width=688&name=Preseem%2020000F.png) ### Preseem 20000G 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 2 x SFP28 (25G)  **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  ![Preseem 20000G](https://docs.preseem.com/hs-fs/hubfs/31044565-b96c-402f-9ae1-5959d8ae1360.png?width=541&height=279&name=31044565-b96c-402f-9ae1-5959d8ae1360.png) ### Preseem 20000H 1U x86 Rackmount Network Appliance with 1+1 ATX redundant power supplies 300 watts, 4 hot-swappable cooling fans with smart fan control. **Capacity**: 20 Gbit/s aggregate **Management Interfaces**: 1 GbE RJ-45 & 4x SFP+ **Data Interfaces**: 2 x QSFP28 (100G)  **DC Power Supplies Available:**  1 + 1 redundant 48V DC Power Supplies  - 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