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Green circuit board M.2 2280 SSD with gold edge connector and black controller chips

Synology Inc.

Synology Inc. SNV5420-400G M.2 2280 400GB PCI-Express 3.0 x4 enterprise SSD

SKU CH-ZS7Z-R7BY8

Enterprise M.2 2280 SSD delivering 3000 MBps reads and 700 TBW endurance for intensive caching workloads

  • Form FactorM.2 2280
  • Capacity400GB
  • InterfacePCI-Express 3.0 x4
  • Max Sequential ReadUp to 3000 MBps
  • Max Sequential WriteUp to 650 MBps
  • 4KB Random ReadUp to 225,000 IOPS
  • Delivers up to 3000 MBps sequential read speed for fast data access
  • Sustains 660,000 random read IOPS to accelerate caching workloads
  • Enterprise-grade endurance rated at 700 TBW for long-term reliability
  • Operates reliably from 0°C to 85°C in demanding server environments
  • Built for Synology systems with validated interoperability and automatic DSM firmware updates

Synology SNV5420-400G Enterprise SSD

The Synology SNV5420-400G is an enterprise-grade M.2 2280 solid-state drive offering 400GB capacity over a PCI-Express 3.0 x4 interface. It is designed for servers and NAS platforms that require consistent performance for caching and mixed workloads. Synology validates interoperability and delivers automatic firmware updates through DSM.

Thermals Noise and Power Draw

Active power draw is rated at 5.0 W during typical reads and 5.5 W during typical writes, dropping to 2.5 W at idle. The drive operates reliably between 0°C and 85°C, with a storage range extending to -40°C. No moving parts mean silent operation in any compatible slot.

Upgrade Path and Value

This drive replaces lower-endurance SSDs in write-intensive caching roles, backed by 700TB written endurance and a 3,000,000-hour MTBF. The jump is worth it when sustained random performance up to 660,000 read IOPS and 120,000 write IOPS is needed. It is not for buyers who require capacities beyond 400GB or interfaces other than PCI-Express 3.0 x4.

Points forts

  • Delivers up to 3000 MBps sequential read speed for fast data access
  • Sustains 660,000 random read IOPS to accelerate caching workloads
  • Enterprise-grade endurance rated at 700 TBW for long-term reliability
  • Operates reliably from 0°C to 85°C in demanding server environments
  • Built for Synology systems with validated interoperability and automatic DSM firmware updates

Caractéristiques

BrandSynology
ModelSNV5420-400G
Form FactorM.2 2280
Capacity400GB
InterfacePCI-Express 3.0 x4
Max Sequential ReadUp to 3000 MBps
Max Sequential WriteUp to 650 MBps
4KB Random ReadUp to 225,000 IOPS
4KB Random WriteUp to 45,000 IOPS
Terabytes Written (TBW)700TB
MTBF3,000,000 hours
Power Consumption (Idle)2.5 W
Power Consumption (Active)5.0 W read (Typ.), 5.5 W write (Typ.)
Operating Temperature0°C to 85°C (32°F to 185°F)
Storage Temperature-40°C to 85°C (-40°F to 185°F)
FeaturesHigh Performance
Up to 660,000/120,000 sustained 4K random read/write IOPS
Enterprise-Grade Endurance
Suitable for intensive caching workloads with up to 2,900 TBW
Robust Data Protection
End-to-end data protection ensures data integrity
Lifetime Analytics
Stay on top of drive health with lifetime wear analytics and notifications
Built for Synology Systems
Proven interoperability through rigorous validation and automatic firmware updates through Synology DSM
Height3.50mm
Depth22mm
Weight80mm

Questions sur cet article

How do I install the M.2 2280 drive into a PCI-Express 3.0 x4 slot and what step is often missed?

Insert the M.2 2280 card into the PCI-Express 3.0 x4 slot at a 30-degree angle, secure it with the mounting screw, and verify the BIOS detects the 400GB device before configuring it in DSM.

What maintenance will the SNV5420-400G need and when should I plan a replacement?

Monitor lifetime wear analytics in DSM; the drive is rated for 700TB written and 3,000,000 hours MTBF, so plan replacement when health notifications indicate endurance is nearing its limit.

What is the first performance limit I will hit during sustained heavy writes?

Sustained 4K random write IOPS caps at 45,000, and sequential write throughput peaks at 650 MBps, so write-intensive caching workloads will encounter those ceilings first.

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