juniper QFX Series QFX5200-64Q
The Juniper QFX5200-64Q is a 2U high-density datacenter spine and aggregation switch providing 64 ports of 40GbE QSFP+ with up to 16 ports capable of 100GbE QSFP28 operation. Powered by dual Broadcom Tomahawk ASICs delivering 5.12 Tbps of throughput, the switch was engineered for large-scale 40G datacenter backbones requiring immense port density in a fixed form factor. In secondary hardware channels, the 64Q offers cost-effective 40G aggregation and high-density 10G breakout capacity.
Specifications
| Brand | juniper |
|---|---|
| Family | QFX Series |
| Form factor | 2U fixed switch |
| Released | Apr 2016 |
| Ports | 64x 40GbE QSFP+ ports (with up to 16 ports supporting 100GbE QSFP28) |
| Switching capacity | 5.12 Tbps / 2.56 Bpps forwarding capacity |
| Form factor | 2U rack enclosure with redundant fans and power modules |
| Breakout density | Supports up to 256x 10GbE connections using 4x 10G breakout cables |
| Management | Junos OS with Junos Web, telemetry streaming, and automated Zero-Touch Provisioning (ZTP) |
Generations
- Next generation: juniper QFX Series QFX5210-64C
Works together
How the juniper QFX Series QFX5200-64Q connects to servers, storage and the network: 3 ways, with the parts and products on each path.
iSCSI and NVMe/TCP over Ethernet
Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.
Servers
HPE Edgeline EL1000 1U converged edge system
HPE Edgeline EL4000 1U converged edge system
HPE Synergy 660 Gen10 Compute Module full-height compute module
HPE Apollo 4200 Gen9 2U rack
HPE ProLiant DL20 Gen9 1U rack
HPE ProLiant DL385 Gen10 2U rack
Adapters for the server
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Storage
Lenovo ThinkSystem DM7000H 3U rack
Dell PowerStore 7000T 2U rack
Lenovo ThinkSystem DM7100H 4U rack
Lenovo ThinkSystem DM5100F 2U rack
Dell PowerStore 1200T 2U rack
Dell PowerStore 3200T 2U rack
Optics
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
File storage (NFS and SMB)
Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.
Servers
- HPE Edgeline EL1000 1U converged edge system
- HPE Edgeline EL4000 1U converged edge system
- HPE Synergy 660 Gen10 Compute Module full-height compute module
- HPE Apollo 4200 Gen9 2U rack
- HPE ProLiant DL20 Gen9 1U rack
- HPE ProLiant DL385 Gen10 2U rack
Adapters for the server
- BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
- 540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
- 540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
- 540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Storage
- Lenovo ThinkSystem DM7000H 3U rack
- Dell PowerStore 7000T 2U rack
Dell PowerScale F600 1U rack- Lenovo ThinkSystem DM7100H 4U rack
- Lenovo ThinkSystem DM5100F 2U rack
Dell PowerScale F900 2U rack
Optics
- QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
- QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
- 407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
Hyperconverged cluster
Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.
HCI nodes
HPE SimpliVity 380 Gen10 2U rack
HPE SimpliVity 380 Gen9 2U rack
HPE SimpliVity 325 Gen10 1U rack
HPE SimpliVity 380 Gen10 G 2U rack
Adapters for the server
- BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
- 540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
- 540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
- 540-BDCP Dell Broadcom 57508 Dual Port 100GbE QSFP56 PCIe Gen4 Adapter
Optics
- QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
- QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
- 407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- iSCSI explained mrplanb.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- Network monitoring tools compared mrplanb.com
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the juniper QFX Series QFX5200-64Q.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
Equivalent models from other brands
FAQ
How many 10GbE ports can the QFX5200-64Q yield?
Using 4x 10G breakout cables across all 64 ports, it yields up to 256 10GbE interfaces.
Can it be deployed as an IP fabric spine?
Yes, it is designed as a collapsed core or spine switch in standard BGP/EVPN datacenter architectures.
Buying or selling QFX5200-64Q?
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
- Juniper QFX5200-64Q Product Overview, checked 2026-10-27
- Juniper QFX5200-64Q Datasheet, checked 2026-10-27