# SYNOLOGY DX517 5-BAY EXPANSION UNIT - DISKLESS

FEATURES • Online volume expansion • Dedicated local backup solution • Hot-swappable drive tray design • Synchronised system operation with DiskStation APPLIED MODELS Supports Creating Volumes Across Different Units • 23 Series: DS1823xs+, DS923+, DS723+ • 22 Series: DS1522+ • 21 Series: DS1821+, DS1621xs+, DS1621+, DVA3221 • 20 Series: DS1520+, DS920+, DS720+ • 19 Series: DS1819+, DS1019+, DVA3219 • 18 Series: DS1618+, DS918+, DS718+, NVR1218 • 17 Series: DS1817+, DS1817, DS1517+, DS1517 • 16 Series: DS916+, DS716+II, DS716+ • 15 Series: DS1815+, DS1515+, DS1515 Supports Creating Volumes on a Single Unit Only • 18 Series: DS218+ • 16 Series: DS216+II, DS216+, NVR216 • 15 Series: DS415+ Notes • Upgrade to DSM 6.2.1-23824-5 or later before using with 15 and 16 series models (excluding DS1515, DS716+, and DS716+II). • For better performance, create storage volumes physically located within the same NAS or Expansion Unit. SPECIFICATIONS Storage • Drive Bays: 5x • Compatible Drive Types: 3.5" SATA HDD, 2.5" SATA HDD/SSD • Hot Swappable Drive: Yes • RAID Management through Synology DSM: Yes External Ports • eSATA Port: 1x Appearance • Size (H × W × D): 157 × 248 × 233 mm • Weight: 3.91 kg Power • Power Recovery: Synchronised with the Synology DiskStation • Power Supply Unit / Adapter: 200W • AC Input Power Voltage: 100–240VAC • Power Frequency: 50/60Hz, Single Phase • Power Consumption: 29.9W (Access), 2.4W (HDD Hibernation) British Thermal Unit • 102.02 BTU/hr (Access) • 8.19 BTU/hr (HDD Hibernation) Environment • Operating Temperature: 5°C–40°C • Storage Temperature: -10°C–70°C • Operating Humidity: 8–80% RH • Storage Humidity: 5–95% RH Cooling & Noise • System Fan: 2 × 80 × 80 mm • Easy Replacement System Fan: Yes • Noise Level: 21.5 dB(A) Certification • FCC, CE, BSMI, BIS Warranty • 3-Year Hardware Warranty (Extendable to 5 years with EW201 or Extended Warranty Plus)

## Details

- **Price:** 15415.0 ZAR
- **Vendor:** SYNOLOGY
- **Type:** NAS
- **Tags:** bay, diskless, dx517, expansion, linkqage, synology, unit

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15415.00 ZAR | In stock |

## Images

- Synology Dx517 5-bay Expansion Unit - Diskless — SYNOLOGY | Guards on Duty Shop

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/synology-dx517-5-bay-expansion-unit-diskless)
> Updated: 2026-06-03