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Synology FlashStation FS6400

Model: FS6400 · US configuration

Front view of the Synology FlashStation FS6400 with 24 drive-tray faces and the FS6400 model label visible.
Official FS6400 product image (front view); it does not show a drive bundle.

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A 2U, 24-bay rack NAS for 2.5-inch SAS HDDs or SSDs and SATA SSDs, with dual 10GbE ports, two additional 1GbE ports, and optional Synology drive-shelf expansion.

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Why consider this model?

  • A business team with a rack, 24 compatible 2.5-inch SAS/SATA drives, a 10GbE path and a need for file/block services can evaluate the FS6400's documented expansion options. Optional drive shelves and cards are not native bays or included capacity.

Tradeoffs to weigh

  • The FS6400 is an older-generation 2U platform with 32 GB installed memory and PCIe 3.0 expansion slots. Its extra SAS support and shelf path come with compatibility, rack, power, cooling and administration work; drives and rails are separate package checks.
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