Cisco MDS 9718
The Cisco MDS 9718 is a massive 26U 18-slot director-class SAN switch built for the largest enterprise data centers and private clouds in the world. Supporting up to 768 line-rate 64Gb/32Gb Fibre Channel ports across 16 payload slots, it delivers massive port density and multi-terabit switching for core storage fabrics.
Specifications
| Brand | Cisco |
|---|---|
| Family | Cisco MDS 9000 Series |
| Form factor | chassis |
| Released | Mar 2016 |
| Chassis form factor | 26U 18-slot modular chassis (2 supervisor slots and 16 payload slots) |
| Port capacity | Up to 768 line-rate Fibre Channel ports |
| Port speeds | 64Gbps, 32Gbps, 16Gbps, 10GbE/40GbE FCIP |
| Switching capacity | Up to 98Tbps aggregate system bandwidth |
| Supervisors | Dual redundant Supervisor-4 or Supervisor-1 modules |
| Power supply | Up to 16x 3000W redundant power supplies |
| Management | Cisco NDFC and CLI |
Compatible parts
Fans
DS-C9718-FAN Cisco MDS 9718 FAN Tray
Power supplies
DS-CAC97-3KW Cisco MDS 9700 3000W AC power supply
DS-CDC97-3KW Cisco MDS 9700 3000W DC power supply
Transceivers
DS-SFP-FC10G-LW Cisco 10 Gbps Fibre Channel LW SFP+, LC
DS-SFP-FC10G-SW Cisco 10 Gbps Fibre Channel SW SFP+, LC
DS-SFP-FC16G-LW Cisco 16Gbps Fibre Channel Longwave SFP+ Transceiver
DS-SFP-FC16G-SW Cisco 16Gbps Fibre Channel Shortwave SFP+ Transceiver
DS-SFP-FC16GELW Cisco 16 Gbps Fibre Channel ELW SFP+, LC
DS-SFP-FC32G-LW Cisco 32Gbps Fibre Channel Longwave SFP28 Transceiver
DS-SFP-FC32G-SW Cisco 32Gbps Fibre Channel Shortwave SFP28 Transceiver
DS-SFP-FC64G-SW Cisco 64Gbps Fibre Channel Shortwave SFP56 Transceiver
DS-SFP-FC8G-ER Cisco 8 Gbps Fibre Channel Extended Reach SFP+, LC
DS-SFP-FC8G-LW Cisco 8 Gbps Fibre Channel LW SFP+, LC
DS-SFP-FC8G-SW Cisco 8 Gbps Fibre Channel SW SFP+, LC
QSFP-40G-CSR4 Cisco 40GBASE-CSR4 QSFP+ Module
QSFP-40G-SR-BD Cisco 40GBASE-SR BiDi QSFP+ Module
QSFP-40G-SR4 Cisco 40GBASE-SR4 QSFP+ Optical Transceiver
SFP-10G-ER Cisco 10GBASE-ER SFP Module
SFP-10G-LR Cisco 10GBASE-LR SFP+ Optical Transceiver
SFP-10G-SR Cisco 10GBASE-SR SFP+ Optical Transceiver
Other parts
DS-X9334-K9 Cisco MDS 9000 Family 24/10 SAN Extension Module
DS-X9648-1536K9 Cisco MDS 9700 48-Port 32-Gbps Fibre Channel Switching Module
DS-X97-SF4-K9 Cisco MDS 9700 Series Supervisor-4 module
DS-X9718-FAB3 Cisco MDS 9718 Crossbar Switching Fabric-3 Module
DS-X9748-3072-TK9 Cisco MDS 9700 48-port 64-Gbps FC module with 48x 32Gbps SW Optics
DS-X9748-3072-VK9 Cisco MDS 9700 48-port 64-Gbps FC module with 48x 64Gbps SW Optics
Works together
How the Cisco MDS 9718 connects to servers, storage and the network: 1 way, with the parts and products on each path.
Fibre Channel SAN
Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).
Servers
Cisco UCS C220 M5 1U rack
Cisco UCS C240 M5 2U rack
Cisco UCS C480 M5 4U rack
Cisco UCS C220 M4 1U rack
Cisco UCS C240 M4 2U rack
Cisco UCS C460 M4 4U rack
Adapters for the server
UCSC-PCIE-BD16GF Cisco Emulex LPe31002 Dual Port 16G Fibre Channel HBA
UCSC-PCIE-BD32GF Cisco Broadcom LPe32002 Dual-Port 32G FC HBA
UCSC-PCIE-BS32GF Cisco Broadcom LPe32000 Single-Port 32G FC HBA
UCSC-PCIE-QD16GF Cisco Qlogic QLE2692 Dual Port 16G Fibre Channel HBA
Storage
Lenovo ThinkSystem TS4300 Tape Library 3U rack
NetApp E-Series E5700 2U/4U rack
Dell VMAX 950F system bay multi-cabinet
Fujitsu ETERNUS DX60 S4 2U rack
HPE MSA 1050 2U rack entry SAN
Hitachi Virtual Storage Platform VSP F350 2U rack
Optics
DS-SFP-FC32G-LW Cisco 32Gbps Fibre Channel Longwave SFP28 Transceiver
DS-SFP-FC32G-SW Cisco 32Gbps Fibre Channel Shortwave SFP28 Transceiver
DS-SFP-FC64G-SW Cisco 64Gbps Fibre Channel Shortwave SFP56 Transceiver
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- SAN transport and NVMe over FC for backup mrplanb.com
Check compatibility with Cisco
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Cisco has tested with the Cisco MDS 9718.
- Compatibility Cisco UCS Hardware Compatibility List
- Compatibility Cisco Optics-to-Device Compatibility Matrix
- Support Cisco Support and Downloads
Equivalent models from other brands
FAQ
What is the maximum port count of the MDS 9718?
The MDS 9718 scales up to 768 Fibre Channel ports in a single 26U director chassis.
What power architecture is used on the MDS 9718?
The MDS 9718 features grid-redundant power supplies supporting up to 16 hot-swap power modules.
Buying or selling MDS 9718?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Cisco MDS 9718 Multilayer Director Data Sheet, checked 2026-10-28
- Cisco MDS 9718 Multilayer Director Data Sheet, checked 2026-10-28