FS3400

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Lightning speed with lower TCO

Featuring an 8-core CPU and 16GB ECC RDIMM memory, FS3400 provides more than 137,000 4K random write IOPS, meeting the needs for real-time analytics, online transaction processing, and mission-critical database services.^۱ With built-in 10GbE Ethernet, PCIe expansion, and the support of various SAS and SATA drives, FS3400 delivers flexible and economical all-flash server deployment on demand.

Scalability

Up to 72 x SAS/SATA drives^۲

Expandability

۱ x PCIe 3.0 for 25/40GbE NIC’s expansion

Memory

۱۶GB DDR4 ECC RDIMM, up to 128GB

CPU

Intel^® Xeon^® D-1541 8 Core 2.1 GHz

CPU	CPU Model	Intel Xeon D-1541
	CPU Quantity	۱
	CPU Architecture	۶۴-bit
	CPU Frequency	۸-core 2.1 (base) / 2.7 (turbo) GHz
	Hardware Encryption Engine (AES-NI)
Memory	System Memory	۱۶ GB DDR4 ECC RDIMM
	Memory Module Pre-installed	۱۶ GB (16 GB x 1)
	Total Memory Slots	۴
	Maximum Memory Capacity	۱۲۸ GB (32 GB x 4)
	Notes	For more information on memory upgrade limitations, visit here. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information on the recommended memory configurations, visit here. Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage	Drive Bays	۲۴
	Maximum Drive Bays with Expansion Unit	۴۸ (RX1217sas x 2) / 72 (FX2421* x 2)
	Compatible Drive Type* (See all supported drives)	۲.۵″ SAS HDD ۲.۵″ SAS SSD ۲.۵″ SATA SSD
	Hot Swappable Drive
	Notes	“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	RJ-45 1GbE LAN Port	۴ (with Link Aggregation / Failover support)
	RJ-45 10GbE LAN Port	۲ (with Link Aggregation / Failover support)
	USB 3.2 Gen 1 Port*	۲
	Expansion Port	۱
	Notes	The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe	PCIe Expansion	۱ x Gen3 x8 slot (x8 link)
File System	Internal Drives	Btrfs EXT4
	External Drives	Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT
	Notes	exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
Appearance	Form Factor (RU)	۲U
	Size (Height x Width x Depth)	۸۸ mm x 482 mm x 724 mm
	Weight	۱۴.۹ kg
	Rack Installation Support*	۴-post 19″ rack (Synology Rail Kit – RKS-02)
	Notes	The rail kit is sold separately
Others	System Fan	۸۰ mm x 80 mm x 4 pcs
	Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
	Easy Replacement System Fan
	Power Recovery
	Noise Level*	۵۷ dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	۵۰۰ W
	Redundant Power Supply
	AC Input Power Voltage	۱۰۰V to 240V AC
	Power Frequency	۵۰/۶۰ Hz, Single Phase
	Power Consumption*	۳۱۳.۸۴ W (Access) ۱۲۵.۷۷ W (HDD Hibernation)
	British Thermal Unit	۱,۰۷۰.۸۶ BTU/hr (Access) ۴۲۹.۱۵ BTU/hr (HDD Hibernation)
	Notes	Power consumption is measured when it is fully loaded with HGST 1.8TB HUC101818CS4204 hard drive(s). 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%
Temperature	Operating Temperature	۰°C to 35°C (32°F to 95°F)
	Storage Temperature	-۲۰°C to 60°C (-5°F to 140°F)
	Relative Humidity	۵% to 95% RH
Certification	FCC CE BSMI EAC KC UL VCCI RCM
Warranty	۵ Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment	RoHS Compliant
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1
Optional Accessories	DDR4 ECC RDIMM: D4RD-2666-16G/D4RD-2666-32G Expansion Units: FX2421/RX1217sas ۲.۵″ SATA SSD: SAT5210 ۲۵GbE Network Interface Card: E25G21-F2 ۱۰GbE Network Interface Card: E10G21-F2/E10G18-T2/E10G18-T1 Rail Kit Sliding: RKS-02 VisualStation: VS360HD Surveillance Device License Pack
	Notes	It is required to use D4RD-2666-16G with identical memory modules of the same capacity and frequency. For more information, visit here. Expansion Unit FX2421 can only be used with identical expansion units.