Synology FlashStation FX2421 Expansion Unit - Storage Enclosure

QuickFind: 1121187 Mfr part code: FX2421
  • Storage enclosure
  • 24 bays (SATA-600 / SAS)
  • Rack-mountable

Product Description

Synology FlashStation FX2421 Expansion Unit - Storage Enclosure

Synology FX2421 expansion units for Synology FlashStation make it easy to upgrade your all-flash storage space with Synology enterprise SSD. Each 2U rackmount unit lets you add 24 additional 2.5"drive bays on the fly using an expansion cable. Synology FX2421 24 bay expansion unit allows you to create a highly reliable and integrated storage setup,and receive long-term Synology updates and support.
  • 24-bay 2.5"expansion unit for Synology FlashStation
  • Expand your Synology FlashStation with expansion unit FX2421 for 24 additional 2.5"drive bays whenever needed. Without additional software configuration,FX2421 is immediately ready for use when connected to Synology FlashStation. FX2421 expansion units can also be used as a dedicated and rapidly accessible local backup destination.
  • High-performance data transmission
  • The high-speed expansion cable provided with FX2421 enables high bandwidth connectivity for maximum data throughput between your Synology FlashStation and expansion unit. Drives in FX2421 operate with minimum data latency,as if installed directly on your Synology FlashStation,allowing you to take advantage of high SSD I/O performance.
  • High-reliability design,easy hardware setup
  • The FX2421 is a highly reliable expansion unit that comes with hot-swappable drive trays and modularized components. Redundant power supplies and system fans can be replaced with ease to ensure maximum service uptime.
  • Seamless storage expansion - 24 additional drive bays available for online volume expansion on the fly for your Synology FlashStation
  • High-reliability design - modularized components including redundant power supplies and system fans ensure maximum uptime
  • Easy hardware setup - Plug-and-Play design and fast rack fixing lock support make upgrading storage space easy

Technical Specification

Synology FlashStation FX2421 Expansion Unit - Storage Enclosure


Device Type Storage enclosure
Enclosure Type Rack-mountable


Built-in Devices Led panel
Installed Devices / Modules Qty 0
Supported Devices / Modules Qty 24
Supported Drives SATA-600 / SAS


Max Supported Capacity 92.16 TB



Hard Drive

Type No HDD

Expansion / Connectivity

Expansion Bays 24 (total) / 24 (free) x hot-swap - 2.5"
Interfaces SAS (input) ¦ SAS (output)


Features Built-in 4 cooling fans
Cables Included 1 x mini SAS HD cable
Compliant Standards UL, RoHS
Included Accessories Accessory pack


Power Device Internal power supply
Power Redundancy Yes
Voltage Required AC 120/230 V - 50/60 Hz
Power Consumption Operational 190.99 Watt
Power Provided 500 Watt

Dimensions & Weight

Width 43.05 cm
Depth 69.2 cm
Height 8.8 cm
Weight 14.5 kg

Manufacturer Warranty

Service & Support Limited warranty - 5 years

Environmental Parameters

Min Operating Temperature 0 °C
Max Operating Temperature 35 °C
Humidity Range Operating 5 - 95%
Sound Emission 57 dBA

Product Reviews

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Synology FlashStation FX2421 Expansion Unit - Storage Enclosure

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Synology FlashStation FX2421 Expansion Unit - Storage Enclosure

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