24-bay 2.5" expansion unit for Synology FlashStation Expand your Synology FlashStation1 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. Expand FlashStation with Synology SAT5200 SSD Synology enterprise-grade SAT5200 SATA SSD, developed in tandem with FX2421, provides proven interoperability and high reliability through rigorous validation and compatibility testing with Synology expansion units. Combine SAT5200 drives with Synology FlashStation and FX2421 for a highly reliable and integrated storage setup, and receive long-term Synology updates and support Specification Hardware Specifications Applied Models Supports creating volumes across different units FS series:FS6400, FS3600, FS3400 Notes Expansion Unit FX2421 can only be used with identical expansion units. To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit. DSM version requirement: 6.2.3-25426-2 or later version. Storage Drive Bays 24 Compatible Drive Type* 2.5" SAS HDD 2.5" SAS SSD 2.5" SATA SSD Hot Swappable Drive* RAID Management through Synology DSM Notes Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the . The use of non-validated components may limit certain functionality and result in data loss and system instability. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. External Ports SAS IN-port 1 SAS OUT-port 1 Appearance Size (Height x Width x Depth) 88 mm x 430.5 mm x 692 mm Size (Height x Width x Depth) (with server ears) 88 mm x 482 mm x 724 mm Weight 14.5 kg Rack Installation Support* 4-post 19" rack Notes The rail kit is sold separately Power Power Supply Unit / Adapter 500 W AC Input Power Voltage 100V to 240V AC Power Frequency 50/60 Hz, Single Phase Power Consumption 190.99 W (Access) British Thermal Unit 651.68 BTU/hr (Access) Redundant Power Supply Notes Power consumption is measured when it is fully loaded with HGST 1.8TB HUC101818CS4204 hard drive(s). Temperature Operating Temperature 0°C to 35°C (32°F to 95°F) Storage Temperature -20°C to 60°C (-5°F to 140°F) Relative Humidity 5% to 95% RH Others System Fan 80 mm x 80 mm x 4 pcs Easy Replacement System Fan Noise Level* 57 dB(A) Notes Noise Level Testing Environment: Fully loaded with Toshiba 600GB AL14SEB060N hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% Certification UL FCC CE EAC VCCI RCM KC Warranty 5 Years Notes The warranty period starts from the purchase date as stated on your purchase receipt. Environment & Packaging Environment RoHS Compliant Packaging Content Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Expansion Cable: MiniSAS-HD X 1 Quick Installation Guide X 1