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Name:
DES-85-24GE-SFP
- Description:
- D-Link 24-port gigabit optical (SFP), 4-port multiplexing gigabit electrical service board (RJ45)
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DES-85-24GE-SFP Overview
DES-85-24GE-SFP is built on a resilient, scalable architecture designed to deliver high-performance, low-latency connectivity in demanding network environments. It provides reliable AC power options and features 24 fixed GE SFP ports that enable fiber-optic connectivity for long-distance links and enhanced network flexibility.
This switch supports stacking to simplify network expansion and management, ensuring that performance scales seamlessly as your network grows. Ideal for enterprise campus networks, data centers, and other high-density environments, the DES-85-24GE-SFP offers robust throughput, secure management capabilities, and a proven platform for modern network infrastructures.
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Explore more options from Switches or explore other D-Link products.
DES-85-24GE-SFP Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 |
| Form Factor | Rack-mount |
| Power Consumption | 33 W |
| Number Of Ethernet Ports | 12–24 Ports |
| Number Of Downlink Ports | 24 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Fiber |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | DES-85-24GE-SFP |
| Uplink Configuration | 1G |
| IOS | LAN Base |
| POE Support | Non POE |
| SFP Ports | 24 SFP Ports |
| Memory | 128 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | N/A |
| Flash Memory | 32 MB |
| Switching Capacity | 48 Gbps |
| Switching Capacity With Stacking | 96 Gbps |
| Product Name | DES-85-24GE-SFP Gigabit Ethernet Switch |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 11 inches |
| Weight | 15 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 11 inches | 10.5 inches | 11 inches | 11 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 32 MB | 64 MB | 64 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | LAN Lite | LAN Base | IP Services |
| Layer Supported | Layer 2 | Layer 2 | Layer 2 | Layer 2 / Layer 3 | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | DES-85-24GE-SFP | DES-85-24GE-TXE | DES-85-24GE-TX | DES-85-4TE-SFP+-MPLSE | DES-85-4TE-SFP+-MPLS-L |
| Media Type Supported | Fiber | Twisted Pair | Twisted Pair | Combo | Combo |
| Memory | 128 MB | 256 MB | 128 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 24 Ports | 8 Ports | N/A |
| Number of Ethernet Ports | 12–24 Ports | 12–24 Ports | 12–24 Ports | Under 12 Ports | Under 12 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | 24 fixed 10/100/1000 Ethernet ports and 4 dedicated 1G SFP uplink slots with stacking capability | 24 10/100/1000 TX ports, 4 SFP ports | Fixed port configuration | 4 Ethernet ports and 4 SFP+ uplink ports |
| Power Consumption | 33 W | 50 W | 35 W | 55W | 50W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | DES-85-24GE-SFP Gigabit Ethernet Switch | DES-85-24GE-TXE Gigabit Stackable Managed Switch | DES-85-24GE-TX Ethernet Managed Switch | DES-85-4TE SFP+ Managed Ethernet Switch MPLSE | DES-85-4TE-SFP+-MPLS-L |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | No | No | No | No |
| SFP Ports | 24 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 48 Gbps | 52 Gbps | 48 Gbps | 128 Gbps | 64 Gbps |
| Switching Capacity with Stacking | 96 Gbps | 104 Gbps | 96 Gbps | 256 Gbps | 128 Gbps |
| Uplink Configuration | 1G | 1G | 1G | 10G | 10G |
| Weight | 15 lbs | 9.5 lbs | 10 lbs | 15 lbs | 7 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches |
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Questions & Answers
Q
What is the D-Link DES-85-24GE-SFP (SKU: DES-85-24GE-SFP)?
A
The D-Link DES-85-24GE-SFP is a managed Layer 2 switch featuring 24 gigabit SFP fiber uplinks and a 4-port gigabit RJ45 multiplexing service board, designed for high-density, low-latency enterprise networks.
Q
How many SFP and RJ45 ports does DES-85-24GE-SFP provide?
A
The DES-85-24GE-SFP offers 24 SFP ports for optical connectivity and a detachable 4-port gigabit RJ45 board for electrical service, enabling flexible fiber-to-copper deployment.
Q
What is the total switching capacity of the DES-85-24GE-SFP?
A
The switch delivers up to 96 Gbps switching capacity with non-blocking architecture, ensuring full-duplex performance on all 28 ports simultaneously.
Q
Does this switch support VLAN and advanced network segmentation?
A
Yes. The DES-85-24GE-SFP supports 4,096 VLANs, 802.1Q trunking, GVRP, and private VLANs for robust traffic segmentation and security.
Q
What management options are available on DES-85-24GE-SFP?
A
Management is provided via web GUI, CLI over SSH/Telnet, SNMP v1/v2c/v3, RMON, and D-Link Network Assistant for centralized monitoring.
Q
Does DES-85-24GE-SFP support link aggregation?
A
Yes. It supports up to 8 Link Aggregation Groups (LAGs) with 8 ports per group, compliant with IEEE 802.3ad for increased bandwidth and redundancy.
Q
What QoS features are available on this switch?
A
The switch offers 8 hardware queues, 802.1p priority, DiffServ (DSCP), Weighted Round Robin (WRR), and strict priority scheduling for traffic shaping.
Q
Is this switch suitable for fiber-to-desktops or server farm deployments?
A
Absolutely. With 24 SFP uplinks and optional RJ45 ports, it suits aggregation in server farms, campus cores, or fiber-to-the-desktop applications.
Q
What optical modules are compatible with the SFP ports?
A
The DES-85-24GE-SFP is compatible with standard gigabit SFP modules (SX, LX, LH, BX) from D-Link or any MSA-compliant vendor for diverse link distances.
Q
How do I install the 4-port gigabit RJ45 service board?
A
Power down the switch, remove the blank panel, align the RJ45 board with the guide rails, slide it fully into the slot, and secure with mounting screws.
Q
What is the typical power consumption of the DES-85-24GE-SFP?
A
Maximum power consumption is 45 W under full load; typical idle consumption is around 20 W, making it energy-efficient in 1U rack deployments.
Q
Does the switch support IPv6 management and features?
A
Yes. It offers full IPv6 host and management support, including SNMPv3, Telnet/SSH over IPv6, DHCPv6, and IPv6 ACLs for future-proof networks.
Q
What redundancy features are supported?
A
It supports Spanning Tree Protocol (STP, RSTP, MSTP), G.8032 Ethernet Ring Protection, and VRRP for loop prevention and high-availability.
Q
How do I upgrade the firmware on DES-85-24GE-SFP?
A
Download the latest firmware from D-Link’s support site, access the web GUI, navigate to Maintenance > Firmware Update, upload the image, and reboot.
Q
What warranty and technical support options are available?
A
D-Link provides a limited lifetime warranty on the DES-85-24GE-SFP and 24/7 online technical support, plus extended advance replacement options.
Q
What are the recommended operating and storage conditions?
A
Operating: 0 °C to 40 °C, 10%–90% non-condensing humidity. Storage: –40 °C to 70 °C, 5%–95% non-condensing humidity for reliable performance.
