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Silver 1U rackmount NAS with twelve front drive bays

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

  • CPUAMD Ryzen V1780B quad-core (8-thread) 3.35 GHz, max boost cl
  • Form factor12-Bay
  • LAN ports2 × 10GbE + 2 × 1GbE
  • USB ports2 x USB 3.2 Gen 1
  • Drive interface12 x SATA (12 x Bay)
  • Pcie1 × 8 width slot, Gen 3.0 x4 lanes Supports network interfac
  • 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.

How it compares

Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.

Price $2,441.99
Cheaper than about 90% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameFlashStation FS2500
Recommended useHigh read/write performance with RAID
Processor
CPUAMD Ryzen V1780B quad-core (8-thread) 3.35 GHz, max boost clock up to 3.6 GHz
Memory
Installed RAM8 GB DDR4
Maximum RAM capacity32 GB
Storage
Drive interface12 x SATA (12 x Bay)
Drives includedDiskless System
Supported RAID modesSynology RAID F1, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10
Connectivity
Protocol supportSMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN, L2TP)
Ports & slots
LAN ports2 × 10GbE + 2 × 1GbE
USB ports2 x USB 3.2 Gen 1
Power
Power detailsAC input power voltage: 100 V to 240 V AC
Power frequency: 50/60 Hz, single phase
Size & build
Form factor12-Bay
Product weight18.3 lb (8.3 kg)
Compatibility
Compatible drives2.5 in SATA SSD
In the box
In the box1 x FS2500 main unit
1 x Quick Installation Guide
1 x Accessory pack
2 x AC power cord
Environment & compliance
Temperature range0 °C - 35 °C
Humidity range5-95% R.H
More details
Pcie1 × 8 width slot, Gen 3.0 x4 lanes
Supports network interface cards

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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