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Synology Inc.

Synology FlashStation FS2500 12-Bay rackmount NAS

SKU CH-MRR4-4TWPX

A 12-bay 1U rackmount NAS built for I/O-intensive workloads, powered by an AMD Ryzen V1780B quad-core processor with 8 GB DDR4 and dual 10GbE ports

  • Port RJ-452 x 10GbE + 2 x 1GbE
  • Port USB2 x USB 3.2 Gen 1
  • HDD Interface12 x SATA (12 x Bay)
  • PCIe1 x 8 width slot, Gen 3.0 x4 lanes Supports network interfac
  • Form Factor12-Bay
  • ProcessorAMD Ryzen V1780B quad-core (8-thread) 3.35 GHz, max boost cl
  • Handles intensive I/O with over 170,000/82,000 4K random read/write IOPS
  • 12-bay 1U rackmount design supports 2.5" SATA SSDs for scalable all-flash storage
  • AMD Ryzen V1780B quad-core 8-thread processor at 3.35 GHz with max boost to 3.6 GHz
  • Dual 10GbE and dual 1GbE RJ-45 ports plus PCIe 3.0 x4 slot for 25/40GbE NIC expansion
  • 8GB DDR4 installed, expandable to 32GB, with Synology RAID F1 and multiple RAID levels

12-Bay All-Flash Rackmount NAS

The Synology FlashStation FS2500 is a 1U rackmount NAS built for small to medium enterprises needing high IOPS from SATA SSDs. Its AMD Ryzen V1780B processor delivers over 170,000 random read IOPS for virtual machines, databases, and email servers.

SATA Interface and 10GbE Throughput

Twelve 2.5-inch SATA bays limit maximum drive speed to the SATA bus while dual 10GbE ports cap network throughput at ten gigabits per second. The PCIe 3.0 x4 slot accepts 25 or 40GbE cards but shares bandwidth with other expansion needs.

Diskless Configuration and Memory Ceiling

The unit ships without drives so you must supply twelve compatible 2.5-inch SATA SSDs. Installed DDR4 memory sits at 8GB with a hard ceiling of 32GB, restricting the number of concurrent virtual machines or heavy caching workloads.

Highlights

  • Handles intensive I/O with over 170,000/82,000 4K random read/write IOPS
  • 12-bay 1U rackmount design supports 2.5" SATA SSDs for scalable all-flash storage
  • AMD Ryzen V1780B quad-core 8-thread processor at 3.35 GHz with max boost to 3.6 GHz
  • Dual 10GbE and dual 1GbE RJ-45 ports plus PCIe 3.0 x4 slot for 25/40GbE NIC expansion
  • 8GB DDR4 installed, expandable to 32GB, with Synology RAID F1 and multiple RAID levels

Specifications

BrandSynology
ModelFlashStation FS2500
Port RJ-452 x 10GbE + 2 x 1GbE
Port USB2 x USB 3.2 Gen 1
HDD Interface12 x SATA (12 x Bay)
PCIe1 x 8 width slot, Gen 3.0 x4 lanes
Supports network interface cards
Form Factor12-Bay
ProcessorAMD Ryzen V1780B quad-core (8-thread) 3.35 GHz, max boost clock up to 3.6 GHz
Installed Memory8GB DDR4
Max Memory Capacity32GB
Included HDD CapacityDiskless System
Drive Compatibility2.5" SATA SSD
RAIDSynology RAID F1, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10
Supported ProtocolsSMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN, L2TP)
PowerAC input power voltage: 100 V to 240 V AC
Power frequency: 50/60 Hz, single phase
FeaturesHigh Performance
Handles intensive I/O efficiently with over 170,000/82,000 4K random read/write IOPS
Flexible Virtualization Storage
Certified support for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack with Kubernetes CSI driver
Convenient Networking Options
Built-in dual 10GbE and dual Gigabit Ethernet ports offer easy integration with existing environments
Data and Services Protection
Back up critical data and cut your recovery time objective with built-in data protection and high availability tools
UsageHigh read/write performance with RAID
Temperature0°C - 35 °C
Humidity5-95% R.H
Weight18.30 lbs.
Package Contents1 x FS2500 main unit
1 x Quick Installation Guide
1 x Accessory pack
2 x AC power cord

Questions about this item

Should I pick the diskless FS2500 or a pre-populated model?

The FS2500 is sold diskless so you choose the 2.5" SATA SSDs and capacity that match your workload and budget.

What does the quoted 170,000/82,000 4K random read/write IOPS mean for my VMs?

That level of low-latency throughput keeps virtual machines, light databases and email servers responsive under heavy I/O loads.

The box has 10GbE and a PCIe 3.0 x4 slot — what speed ceiling does that create?

Dual 10GbE ports handle up to 10 Gb/s each, while the Gen 3.0 x4 lane slot supports 25 GbE or 40 GbE NICs for faster uplinks.

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