SYNOLOGY Flashstation FX2421+ Rail Kit Sliding: RKS-02

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* (See all supported drives)

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 compatibility list. 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 (Synology Rail Kit - RKS-02)
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 (for RP model)
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. (Learn more)
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

Optional Accessories

2.5" SATA SSD: SAT5210
Rail Kit Sliding: RKS-02