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Good spare chassis for quick replacement.
QFX3100-2RU
QFX3100 Base System (spare)
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QFX3100-2RU
QFX3100 Base System (spare)
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QFX3100-2RU is a high-performance Ethernet network module engineered for modern data centers. It features dual SFP+ ports that support speeds up to 40Gbps, making it ideal for connecting servers, switches, and routers in high-speed networks. The module is designed in a modular 2RU form factor and accommodates a range of protocols including TCP/IP and iSCSI for seamless data transmission.
QFX3100-2RU is specifically tailored for environments that demand reliability and fast data rates, such as data center upgrades and network interface expansions. Its industry-standard SFP+ connector ensures compatibility with a broad ecosystem of network equipment while supporting advanced features like auto-negotiation, jumbo frames, and QoS to optimize performance in demanding applications.
QFX3100-2RU price is is available on request. Get immediate quote.
Request bulk order quote for QFX3100-2RU for additional pricing. Browse the full Juniper Switch Modules & Cards series or explore all Juniper products.
In a multi-tier data center network, deploying the QFX3100-2RU-QFX3100 Base System (spare) as a hot standby enables sub-second failover for spine leaf fabrics. When an active spine switch experiences a hardware fault or during scheduled maintenance, the pre-configured spare slides in instantly, preserving EVPN-VXLAN overlays, BGP sessions and low-latency forwarding. Benefit: eliminates downtime and ensures continuous high-performance traffic flow with 10/25/100GbE capacity, driving 99.999% network availability and predictable service levels.
For large enterprise campuses experiencing rapid user and device growth, the QFX3100-2RU-QFX3100 Base System (spare) serves as a plug-and-play replacement for core switches. Pre-staged with Junos OS configurations, the spare unit can be deployed during peak hours without manual reconfiguration. Benefit: accelerates capacity upgrades and hardware refresh cycles, delivers high-density 10/25GbE uplinks and advanced security policies, and maintains service continuity for thousands of endpoints.
In distributed mobile edge environments powering 5G micro-cells, the QFX3100-2RU-QFX3100 Base System (spare) provides rapid swap-out capability for ruggedized edge routers. Pre-loaded with MPLS-TP and EVPN-MLAG configurations, the unit can be hot-swapped at remote sites to uphold ultra-low latency and high throughput backhaul. Benefit: sustains carrier-grade SLAs, minimizes truck rolls and field maintenance windows, and supports seamless service delivery for latency-sensitive IoT and AR/VR applications.
To get the detailed certification, please go to the Compliance Center.
 QFX3100-2RU |  QFX3008-FAB-CPE-BNDL |  QFX3008-SR1 |  QFX3008-SF16Q |  QFX3008-FAB-DRCTR-BNDL | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Network Module / Network Card | Network Module / Network Card | Network Module |
| Module Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 40Gbps | 10Gbps | 40G | 40Gbps | 40Gbps |
| Connector Type | SFP+ | SFP+ | SFP+ | QSFP+ | SFP+ |
| Supported Protocols | TCP/IP / iSCSI | TCP/IP | TCP/IP | TCP/IP | TCP/IP, iSCSI, Fibre Channel |
| Form Factor | Modular (2RU) | Modular | PCIe | Modular | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | N/A | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Routers, Switches, Servers | Juniper Networks | Cisco / Juniper / Arista / Dell / HP | Juniper | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 40Gbps | 10Gbps | 40Gbps | 40Gbps | 40Gbps |
| Supported Features | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | N/A | 15W | 15W | 15W | N/A |
| Interface Ports | SFP+ | Ethernet (SFP+) | Ethernet | QSFP+ | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | QFX3100-2RU | QFX3008-FAB-CPE-BNDL | QFX3008-SR1 Ethernet Module | QFX3008-SF16Q | QFX3008-FAB-DRCTR-BNDL |
| Height | 2RU | N/A | N/A | N/A | N/A |
| Width | 19 inches | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
Good spare chassis for quick replacement.
Booted cleanly and synced fast.
Reliable base system.
Easy to deploy.
Meets operational needs.
The QFX3100-2RU Base System (Spare) is a factory-authorized replacement chassis for Juniper’s QFX3100 line, providing identical form, fit and function to the original unit in a 2RU profile.
This spare system supports up to 1.6 Tbps switching capacity, 1.19 Bpps forwarding rate, 48 SFP+/SFP28 ports, 6 QSFP+/QSFP28 ports and dual-redundant, hot-swap AC or DC power supplies.
Yes. The spare chassis is fully pin-and-slot compatible with all QFX3100 line cards, power supplies, fans and software images, ensuring seamless hardware replacement.
Mount the 2RU chassis in a standard 19-inch rack, insert your existing line cards, power supplies and fan trays, then connect to AC or DC power and restore your saved configuration.