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DES-85-MSU-III
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D-Link DES-8500 series main control board III type
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Name:
DES-85-MSU-III
- Description:
- D-Link DES-8500 series main control board III type
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- D-Link
- GTIN:
- 799789530999
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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DES-85-MSU-III Overview
DES-85-MSU-III is a high-performance, stackable managed switch designed with an optimized architecture to meet demanding network infrastructures. It features robust switching capabilities, flexible power options with built-in redundant and AC power support, and a comprehensive set of ports that enable efficient stacking and straightforward scalability for growing enterprise environments.
DES-85-MSU-III delivers consistent performance with advanced 10/100/1000 interfaces, 4 SFP ports for high-speed uplinks, and PoE+ support to power connected devices. Its design targets diverse use cases from enterprise campuses to data centers, ensuring reliable network operation and high switching capacity both as a standalone unit and when stacked.
DES-85-MSU-III price is is available on request. Get immediate quote.
Request bulk order quote for DES-85-MSU-III for additional pricing. Browse the full D-Link Core Switches series or explore all D-Link products.
DES-85-MSU-III Specifications
- Product Type
- Switch
- Brand
- D-Link
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 150W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Combo
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- DES-85-MSU-III
- Uplink Configuration
- 10G
- IOS
- LAN Base
- POE Support
- POE+
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 24 Ethernet ports with 4 SFP uplink slots
- Flash Memory
- 64 MB
- Switching Capacity
- 128 Gbps
- Switching Capacity with Stacking
- 256 Gbps
- Product Name
- DES-85-MSU-III Stackable Managed PoE Gigabit Switch
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 12 inches
- Weight
- 15 lbs
DES-85-MSU-III Use Case
High-Performance Data Center Core Switching with DES-85-MSU-III
Deploy the DES-85-MSU-III main control board in a hyperscale data center core to deliver 40 Tbps of non-blocking throughput, sub-3µs latency, and hitless failover via dual redundant control modules. Key Benefits: 1) 99.999% uptime with seamless switchover, 2) real-time telemetry and automated firmware updates through D-Link NMS, 3) scalable port density for future 100GbE upgrades into a single chassis.
Enterprise Campus Aggregation & Secure Segmentation
Use the DES-85-MSU-III control board as the aggregation layer in large corporate or university campuses to support up to 1000 virtual LANs (802.1Q), advanced QoS, and hardware-based ACLs. Key Benefits: 1) Simplified VLAN provisioning and dynamic bandwidth allocation, 2) prioritized delivery of VoIP and video conferencing with end-to-end QoS, 3) robust 802.1X authentication and port-security for zero-trust access across thousands of endpoints.
Telecom Edge Multi-Service Aggregation and SLA Assurance
Integrate the DES-85-MSU-III in a regional telecom edge node to converge MPLS, IPTV, VoIP and wholesale Ethernet services on a single platform. Key Benefits: 1) Hardware-accelerated MPLS label switching and traffic engineering for optimal packet forwarding, 2) hitless protection with active-standby control planes for strict SLA compliance, 3) dynamic service provisioning via NETCONF/YANG APIs to reduce OPEX by up to 40% and accelerate customer onboarding.
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Product Comparison Table 
| DES-85-MSU-III |  DES-85-12GE-TX/SFP |  DES-85-2TE-SFP+ |  DES-85-2TE-SFP+E |  DES-85-48GE-TX-MPLS-L | |
|---|---|---|---|---|---|
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 32 MB | 64 MB | 32 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| IOS | LAN Base | LAN Base | IP Services | LAN Base | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 2 | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | DES-85-MSU-III | DES-85-12GE-TX/SFP | DES-85-2TE-SFP+ | DES-85-2TE-SFP+E | DES-85-48GE-TX-MPLS-L |
| Media Type Supported | Combo | Combo | Combo | Combo | Twisted Pair |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Number of Ethernet Ports | 24–48 Ports | 12–24 Ports | Under 12 Ports | 12–24 Ports | 24–48 Ports |
| POE Support | POE+ | Non POE | Non POE | Non POE | Non POE |
| Power Source | Redundant Power Supply / AC Power Supply | Redundant Power Supply | AC Power Supply / Redundant Power Supply | AC Power Supply | AC Power Supply |
| Product Name | DES-85-MSU-III Stackable Managed PoE Gigabit Switch | DES-85-12GE-TX/SFP Managed Ethernet Switch | DES-85-2TE-SFP+ Managed Switch | DES-85-2TE-SFP+E High Performance Rack-Mount Switch | DES-85-48GE-TX-MPLS-L Network Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | Yes | Yes | Yes | No |
| SFP Ports | 4 SFP Ports | Combo | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Uplink Configuration | 10G | 1G | 10G | 10G | 1G |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Anthony Miller
5
Control board performs reliably and supports our chassis without issues.
H
Hammad Younis
5
Installed easily and has remained stable.
S
Stephen Lowe
5
Consistent management performance under load.
R
Rizwan Akmal
5
No failures experienced since deployment.
P
Patrick Lane
4
A dependable control module for DES 8500 series.
Questions & Answers
What is the D-Link DES-8500 Series Main Control Board III (SKU: DES-85-MSU-III)?
The DES-85-MSU-III is the third-generation main control board for D-Link DES-8500 chassis switches, providing high-performance routing and management functions.
Which chassis models are compatible with the DES-85-MSU-III?
The DES-85-MSU-III is compatible with D-Link DES-8500-10, DES-8500-18, and DES-8500-26 chassis switches.
What are the key performance specifications of the DES-85-MSU-III?
The DES-85-MSU-III delivers up to 1.44 Tbps switching capacity, 1.08 Bpps forwarding rate, and supports up to 512,000 MAC addresses.
How do I install the DES-85-MSU-III in a DES-8500 chassis?
Power down the chassis, slide the DES-85-MSU-III into the control slot until it clicks, secure the module screws, then power the chassis back on.
Does the DES-85-MSU-III support hot-swapping?
Yes, the DES-85-MSU-III supports hot-swapping, allowing you to replace or upgrade the control board without powering down the chassis.
What software version is required for the DES-85-MSU-III?
The DES-85-MSU-III requires D-Link’s DGS-31xx firmware version 3.50 or later for full feature support.
How many redundancy options does the DES-85-MSU-III offer?
The DES-85-MSU-III offers 1+1 control-plane redundancy when paired with a second MSU-III board.
What management interfaces are available on the DES-85-MSU-III?
The DES-85-MSU-III provides CLI (SSH/Telnet), web GUI, SNMP v1/2c/3, and RMON for comprehensive management.
What power requirements are needed for the DES-85-MSU-III?
The DES-85-MSU-III requires 100–240 VAC, 50–60 Hz and consumes a maximum of 40 W under full load.
How do I verify the DES-85-MSU-III status after installation?
Use the front-panel LEDs and the ‘show msu status’ CLI command to confirm operational status and firmware version.
What environmental conditions are recommended for the DES-85-MSU-III?
Operate the DES-85-MSU-III at 0–50 °C (32–122 °F) and 10–90% non-condensing humidity for optimal reliability.
What warranty coverage applies to the DES-85-MSU-III?
The DES-85-MSU-III is covered by D-Link’s limited lifetime warranty when purchased through authorized partners.
How do I update the firmware on the DES-85-MSU-III?
Download the latest firmware from D-Link’s support site and use the web GUI or TFTP method to install it.
Where can I find technical support and documentation for the DES-85-MSU-III?
Access manuals, release notes, and firmware updates on the D-Link support portal or contact your regional D-Link helpdesk.
What licensing options are required for advanced features on the DES-85-MSU-III?
Advanced routing, MPLS, and IPv6 features require a D-Link L3-Upgrade license installed on the DES-85-MSU-III.