Synology
Synology FS6400 24 Bay NAS FlashStation (Diskless)
★★★★★
4K32GB DDR4
Unleash Unparalleled Performance with Synology FlashStation FS6400 The Synology FlashStation FS6400 is engineered for high-demand environments. This 24-bay all-flash NAS delivers exceptional speed and responsiveness. Ideal for I/O intensive tasks and latency-sensitive applications. Specification...
$14,545.60*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Unleash Unparalleled Performance with Synology FlashStation FS6400
The Synology FlashStation FS6400 is engineered for high-demand environments. This 24-bay all-flash NAS delivers exceptional speed and responsiveness. Ideal for I/O intensive tasks and latency-sensitive applications.
Specifications:
- Brand: Synology
- Model: FS6400
- Drive Bays: 24
- Processors: Dual Intel Xeon Silver 8-Core
- Memory: 32GB DDR4 ECC RDIMM (Expandable to 512GB)
- Connectivity: 10GBase-T
Key Features
Synology all-flash server targeted at I/o-intensive and latency-sensitive applications; over 240, 000 iSCSI 4K random Write IOPS, ultra-high performance with low latency
Scale up to 72 drives with 2 x Synology expansion unit RX2417sas
Dual Intel Xeon silver 8-Core processors and 32GB DDR4 ECC RDIMM, expandable up to 512GB; onboard 10GBase-T ports, capable of installing optional 10GbE/25GbE/40GbE NICs
Advanced Bars file system offering 65, 000 system-wide snapshots and 1, 024 snapshots per shared folder
Raid; backup; NVR; NAS; iSCSI; surveillance; private cloud; camera
Specifications
Product Type
NAS FlashStation
Model
FS6400
Drive Bays
24 Bay (Diskless)
Processors
Dual Intel Xeon Silver 8-Core
Installed RAM
32GB DDR4 ECC RDIMM
Maximum RAM
512GB
Expansion Capability
Up to 72 drives with 2 x Synology RX2417sas
Network Ports
Onboard 10GBase-T, optional 10GbE/25GbE/40GbE NICs
File System
Advanced Btrfs
iSCSI 4K Random Write IOPS
Over 240,000
Pros & Cons
👍 Pros
- Offers ultra-high performance with low latency, boasting over 240,000 iSCSI 4K random write IOPS, ideal for I/O-intensive tasks.
- Scalable up to 72 drives by integrating two Synology expansion unit RX2417sas, providing immense storage potential.
- Equipped with dual Intel Xeon Silver 8-Core processors and 32GB DDR4 ECC RDIMM, ensuring powerful processing and data integrity.
- Memory is expandable up to 512GB, allowing for significant upgrades to support future demands and more users.
- Features onboard 10GBase-T ports and options to install 10GbE/25GbE/40GbE NICs, supporting very high network throughput.
👎 Cons
- As a diskless unit, hard drives are not included, representing a significant additional cost for a fully operational system.
- The high-end specifications, including dual Xeon processors and extensive expandability, make this a substantial investment.
- Targeted at I/O-intensive and latency-sensitive applications, it may be overkill and too complex for basic home or small business users.
- Requires purchasing Synology expansion units (RX2417sas) for maximum scalability, adding to the initial setup cost.
- The "advanced Btrfs file system" features, while powerful, may require specific technical knowledge to fully utilize.
Frequently Asked Questions
What kind of performance can I expect from the Synology FS6400 NAS?
The Synology FS6400 is designed for ultra-high performance with low latency, offering over 240,000 iSCSI 4K random write IOPS for demanding applications.
How much storage capacity can the FS6400 support?
Starting with 24 diskless bays, it can scale up to 72 drives by adding two Synology expansion unit RX2417sas.
What type of processors and memory are included in this NAS?
It features dual Intel Xeon Silver 8-Core processors and comes with 32GB DDR4 ECC RDIMM, expandable up to 512GB.
What network connectivity options does the FS6400 offer?
It includes onboard 10GBase-T ports and allows for the installation of optional 10GbE/25GbE/40GbE NICs for high-speed networking.
Does the Synology FS6400 offer data protection features?
Yes, it utilizes an advanced Btrfs file system, offering features like 65,000 system-wide snapshots and 1,024 snapshots per shared folder.
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