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Juniper

Juniper QFX5241-64OD-DO-T | QFX5241 64-Port 800GbE OSFP Data Centre Switch, 51.2T

Juniper QFX5241-64OD-DO-T | QFX5241 64-Port 800GbE OSFP Data Centre Switch, 51.2T

QFX5241-64OD-DO-T

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Description

The Juniper QFX5241 64-Port 800GbE data centre switch delivers 51.2 Tbps of unidirectional switching throughput in a compact 2U fixed-configuration chassis — purpose-built for spine, leaf, and border roles in high-performance AI/ML IP fabric architectures. With 64 x OSFP ports supporting breakout to 128 x 400GbE or 256 x 100GbE, it provides extraordinary port density while minimising rack space and total power consumption. DC power input with 1+1 PSU redundancy and N+1 fan module redundancy ensure continuous availability in mission-critical environments.

Running Junos OS Evolved, the QFX5241 supports EVPN-VXLAN, RoCEv2, BGP Additional Paths, and advanced telemetry with ECN/PFC counters for lossless AI/ML workload transport. Automation integrations include Apstra Data Center Director, Terraform, Ansible, Puppet, and Zero Touch Provisioning (ZTP). The QFX5241-64OD-DO-T variant ships with DC PSUs, airflow-out cooling, and the QFX5240-2U-4PRMK 4-post toolless rack mount kit, and is fully TAA compliant. Visit iptrading.com.au to secure your order — enterprise-grade hardware with expert support.

Features

- 64 x 800GbE OSFP ports in 2U for industry-leading density and reduced power per bit
- Flexible breakout to 128 x 400GbE, 256 x 100GbE, or 256 x 50GbE for multi-generation connectivity
- EVPN-VXLAN support for scalable multitenant and multi-domain IP fabric deployments
- RoCEv2 support with ECN/PFC telemetry counters for lossless AI/ML workload transport
- BGP Additional Paths and fine-grained load balancing to minimise flow entropy
- Hot-insertable/hot-removable PSUs and fan modules (FRUs) for non-disruptive maintenance
- 1+1 PSU and N+1 fan module redundancy for continuous high-availability operation
- Secure Boot protects against unauthorised firmware modifications
- Full automation support: Apstra Data Center Director, Terraform, Ansible, Puppet, Python, and ZTP
- Suitable for spine, leaf, end-of-row, and border switch roles in modern IP fabric architectures

Warranty

Juniper products are supplied with standard manufacturer warranty terms, which vary by product and can range from 1 year through to limited lifetime coverage. IP Trading can also provide Juniper J-Care warranty and support extensions for customers who need longer coverage or enhanced support options. https://support.juniper.net/support/warranty/

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- 64 x 800GbE OSFP ports (numbered 0–63)
- Breakout support: 128 x 400GbE, 256 x 100GbE, or 256 x 50GbE
- Switching throughput: 51.2 Tbps unidirectional
- Latency: 700–750 ns (store and forward)
- Form factor: 2U fixed configuration
- Power supply: 2 x DC (QFX5241-PWR-DC-AO), 3000W each, 1+1 redundancy
- DC input voltage: –48V to –60V; Output: 12.2V, 3 kW per PSU
- Typical power consumption: 613W; Maximum: 2198W
- Airflow: Front-to-back (Airflow Out / AFO)
- Cooling: 4 x front-to-back fan modules, 2 rotors each, N+1 redundancy
- Management port: RJ-45 10GbE
- Rack mount kit: QFX5240-2U-4PRMK 4-post toolless (included)
- Operating system: Junos OS Evolved
- TAA compliant

FAQs

Q: What is the total switching throughput of the QFX5241-64OD-DO?
A: The QFX5241-64OD-DO delivers 51.2 Tbps of unidirectional switching throughput across its 64 x 800GbE OSFP ports, making it one of the highest-density fixed-configuration switches available for AI/ML and hyperscale data centre deployments.

Q: What breakout configurations are supported on the 800GbE OSFP ports?
A: Each OSFP port supports breakout to lower-speed interfaces, including 128 x 400GbE, 256 x 100GbE, or 256 x 50GbE — enabling flexible connectivity to a wide range of servers, storage, and existing network infrastructure.

Q: Is the QFX5241-64OD-DO suitable for AI/ML workloads?
A: Yes. The switch supports RoCEv2 for RDMA-based low-latency transport, advanced ECN/PFC telemetry for lossless fabric management, and fine-grained load balancing — all critical requirements for GPU-to-GPU communication in AI/ML training clusters.

Q: What power and airflow configuration does the -DO-T variant use?
A: The QFX5241-64OD-DO-T is configured with DC power supplies (–48V to –60V input) and front-to-back airflow (Airflow Out). It includes two 3000W DC PSUs in a 1+1 redundant configuration, plus four N+1-redundant fan modules. The QFX5240-2U-4PRMK 4-post toolless rack mount kit is included.

Q: Is the QFX5241-64OD-DO-T TAA compliant?
A: Yes, this SKU is TAA (Trade Agreements Act) compliant, making it eligible for US federal government procurement and suitable for organisations with similar compliance requirements.

Q: Can I purchase the Juniper QFX5241-64OD-DO-T in Australia from IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller stocking Juniper QFX-series data centre switches. Visit iptrading.com.au to request a quote or place an order, with expert pre-sales support available for architecture and compatibility queries.

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