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Synology RS815RP+ 4-Bay Rackmount NAS iSCSI
Synology RS815RP+ 4-Bay Rackmount NAS iSCSI
Synology RS815RP+ 4-Bay Rackmount NAS iSCSI
Synology RS815RP+ 4-Bay Rackmount NAS iSCSI
Synology

Synology RS815RP+ 4-Bay Rackmount NAS iSCSI

★★★★★5.0 (10 reviews)

Redundant, rack-ready 4-bay NAS with quad-core power and scalability up to 8 drives for always-on business storage.

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Overview

The Synology RS815RP+ is a 1U rackmount NAS built for businesses that need dependable, always-available centralized storage. Its quad-core processor paired with an AES-NI hardware encryption engine means it can handle encrypted file transfers, iSCSI targets, and multi-user access without bottlenecking. Four Gigabit LAN ports with link aggregation and failover give the unit serious network flexibility, while redundant power supplies ensure that a single PSU failure won't take your data offline.

Starting with four drive bays, the RS815RP+ can scale to eight by adding a Synology RX415 expansion unit, making it a practical choice for growing storage needs. It runs Synology's DiskStation Manager operating system, which provides a polished web-based interface for managing RAID configurations, backup schedules, user permissions, and surveillance station or media server packages. With certifications for VMware, Citrix, and Microsoft Hyper-V, it fits neatly into existing virtualization infrastructure as a reliable iSCSI or NFS storage backend.

Key Features

Four Gigabit LAN Ports with Failover and Link Aggregation Support

Scale up to 8 Drives with Synology RX415

Expandable RAM Module (Up to 6GB)

Redundant Power Supplies Ensure Service Uptime

High Availability and SSD Read/Write Cache Support

VMware , Citrix , and Microsoft Hyper-V Certified

Running on Synology Disk Station Manager (DSM)

Specifications

CPU
Quad Core
RAM
Expandable up to 6GB
Drive Bays
4
Scalability
Up to 8 drives with Synology RX415
LAN Ports
4x Gigabit (Failover & Link Aggregation)
Encryption
AES-NI Hardware Encryption Engine
Power Supply
Redundant
Form Factor
1U Rackmount
Virtualization Certification
VMware, Citrix, Microsoft Hyper-V

Pros & Cons

👍 Pros

  • Redundant power supplies protect against PSU failure and reduce downtime
  • Four Gigabit LAN ports with failover and link aggregation for fast, resilient connectivity
  • Scalable from 4 to 8 drives with the RX415 expansion unit
  • AES-NI hardware encryption engine handles encrypted transfers efficiently
  • Certified for VMware, Citrix, and Hyper-V virtualization environments

👎 Cons

  • Limited to 4 bays without purchasing the separate RX415 expansion unit
  • 1U rackmount form factor requires a server rack or shelf for proper installation
  • RAM tops out at 6GB which may limit performance under heavy multi-user or virtual machine workloads
  • No 10GbE networking built in, limiting throughput for very large file transfers

Frequently Asked Questions

It supports 4 drives natively and scales up to 8 drives when paired with a Synology RX415 expansion unit.
Yes, it includes an AES-NI hardware encryption engine for encrypted data transfers without significant performance loss.
The RS815RP+ has redundant power supplies, so the unit continues operating on the remaining PSU, ensuring uninterrupted service.
Yes, it is certified for VMware, Citrix, and Microsoft Hyper-V environments.
Yes, its four Gigabit LAN ports support both failover and link aggregation for improved throughput and redundancy.

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