Get an Instant Quote
⚡ Usually under 1-hour replies
⚡ Usually under 1-hour replies
Image may differ from actual product.
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
*Terms & Conditions
Part Number: 17121
Description: VIM3-40G4X 4 40GBASE-X QSFP+ ports module for Summit X650/X480
Category: Modules & Cards
and more
15+ Years of Proven Excellence
Delivering reliable IT hardware solutions since 2009.
Same-Day Shipping
On all on-hand orders placed before 2 pm CST.
Limited Lifetime Warranty
You’ll find warranty coverage on the majority of our hardware.*
Terms & Conditions*
The Extreme 17121 VIM3-40G4X represents a breakthrough in enabling high speed connectivity for enterprise environments through its four dedicated 40GBASE-X QSFP+ ports. This expansion module delivers exceptional data transfer rates of up to 160 Gbps aggregate bandwidth, transforming standard Summit X650 switches into high-performance data networking platforms. Each port supports native 40 Gigabit Ethernet operation or can be broken out into four individual 10 Gigabit ports using standard QSFP+ to SFP+ breakout cables, providing unprecedented flexibility for diverse network architectures. The quad small form factor pluggable design enables organizations to maximize port density while maintaining the compact 1RU form factor of the base switch platform.
The Extreme 17121 features comprehensive integration with SummitStack-V80, V160, and V320 stacking technologies, enabling ultra-high-speed interconnection between multiple Summit X650 units. This expansion module supports up to 16 ports of 40 Gigabit Ethernet when deployed across eight stacked switches, creating a massively scalable switching fabric with 320 Gbps of aggregate stacking bandwidth. The flexible deployment options allow network administrators to configure the module for dedicated data connectivity, high-speed stacking, or hybrid deployments that combine both functions. This versatility makes the module ideal for enterprise environments requiring both high-density server connectivity and scalable backbone architecture.
The VIM3-40G4X module is designed for demanding enterprise environments with robust construction and comprehensive testing protocols to ensure reliable operation. Each unit undergoes rigorous restoration and quality assurance processes, whether purchased as new equipment or pre owned item configurations. The module supports hot-swappable installation into Summit X650 chassis without service interruption, minimizing downtime during network upgrades or maintenance activities. Advanced optical and copper connectivity options provide maximum flexibility for both short-range data center interconnects and long-distance campus backbone applications.
Every Extreme 17121 module includes comprehensive warranty coverage and professional support services to ensure optimal network performance. Whether purchasing new or refurbished units, customers receive detailed product specifications, installation documentation, and access to technical support resources. The module’s compatibility with existing Summit X650 infrastructure eliminates the need for extensive network redesign while providing a clear upgrade path to 40 Gigabit Ethernet performance. All modules are subject to applicable shipping restrictions and taxes based on delivery location, with guaranteed stock availability and prompt delivery through authorized seller networks.
| Component | Specification |
| Port Configuration | 4x 40GBASE-X QSFP+ ports |
| Maximum Data Rate | 160 Gbps aggregate bandwidth |
| Breakout Support | 4:1 breakout to 10GBASE-X SFP+ |
| Form Factor | VIM3 slot compatible module |
| Dimensions (H x W x D) | 1.7 x 5.2 x 9.9 inches (4.3 x 13.2 x 25.2 cm) |
| Weight | 3.46 lb (1.57 kg) |
| Power Consumption | Integrated with switch power budget |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Operating Humidity | 10% to 93% relative humidity, non-condensing |
| MTBF | Enterprise-grade reliability specifications |
| Hot-Swap Support | Yes, field replaceable unit |
| Optical Interface | QSFP+ optical and copper direct attach |
The Extreme 17121 integrates seamlessly with Summit X650 switching architecture to deliver industry-leading forwarding performance and ultra-low latency characteristics. When installed in Summit X650 chassis, the module contributes to aggregate switch bandwidth of up to 800 Gbps and forwarding rates of 596 million packets per second. The module supports store-and-forward and cut-through switching modes with less than 2 microsecond latency for 64-byte packets, making it ideal for high-performance computing clusters and latency-sensitive applications. Advanced traffic management features include support for 8 QoS egress queues per port and comprehensive bandwidth policing capabilities.
The VIM3-40G4X module operates under ExtremeXOS modular operating system, providing seamless integration with existing Summit series switches throughout the network infrastructure. The module supports comprehensive Layer 2 and Layer 3 protocols including advanced IPv4 and IPv6 unicast and multicast routing, MPLS label switching, and carrier-grade redundancy protocols such as Ethernet Automatic Protection Switching (EAPS). Quality of service features include granular bandwidth control with 64 Kbps rate limiting granularity and support for up to 2,048 ingress bandwidth meters per 12-port block. The software stack provides complete compatibility with network management platforms and supports SNMP, CLI, and web-based configuration interfaces.
The module provides flexible SummitStack-V connectivity options with support for V80 (80 Gbps), V160 (160 Gbps), and V320 (320 Gbps) stacking configurations depending on the number of ports allocated to stacking functions. When used for SummitStack-V160, two ports provide 160 Gbps of stacking bandwidth, while all four ports can be configured for SummitStack-V320 operation. The module supports both short-range multimode fiber and long-range single-mode fiber optics, as well as passive and active copper direct attach cables for diverse connectivity requirements. Advanced stacking protocols ensure rapid convergence and automatic failover capabilities to maintain network availability during link failures.
Within the Summit X650 VIM ecosystem, the Extreme 17121 VIM3-40G4X provides the highest bandwidth density and most advanced stacking capabilities. Compared to the VIM1-10G8X module with eight 10 Gigabit ports, the VIM3-40G4X delivers twice the aggregate bandwidth while supporting next-generation 40 Gigabit technologies. The module represents a significant advancement over the standard VIM1-SummitStack module, providing 40x the per-port bandwidth and advanced breakout capabilities. For organizations requiring maximum performance and future-proofing, the VIM3-40G4X offers the most comprehensive feature set in the Summit X650 expansion module portfolio, supporting both current 10 Gigabit requirements and migration to 40 Gigabit infrastructure.
The Extreme 17121 provides the highest bandwidth density available for Summit X650 platforms, delivering 160 Gbps aggregate capacity through four 40GBASE-X QSFP+ ports. Its unique 4:1 breakout capability allows each 40G port to function as four individual 10G ports, providing exceptional flexibility for mixed-speed environments. The module’s advanced SummitStack-V320 support enables ultra-high-speed stacking that significantly outperforms traditional SummitStack technologies, making it ideal for demanding enterprise environments requiring maximum scalability.
The Extreme 17121 is designed as a hot-swappable field replaceable unit that installs directly into the VIM3 slot of Summit X650 switches without requiring system downtime. The module requires ExtremeXOS version 12.2.1 or later for full functionality and optimal performance. Installation involves simply inserting the module into the designated slot and configuring the ports through the standard ExtremeXOS command-line interface or web management platform, with automatic recognition and initialization of the new hardware.
The Extreme 17121 includes comprehensive warranty coverage whether purchased as new equipment or as a pre owned item from authorized resellers. New modules typically include standard manufacturer warranty terms, while refurbished units come with seller-specific warranty periods ranging from 90 days to one year depending on the vendor. All modules undergo extensive tested and restored procedures to ensure reliable operation, with detailed documentation and technical support available through both Extreme Networks and authorized seller networks.
Each 40GBASE-X QSFP+ port on the Extreme 17121 can be broken out into four individual 10GBASE-X SFP+ ports using standard QSFP+ to SFP+ fanout cables available from Extreme Networks and third-party vendors. The breakout configuration is performed through software commands in ExtremeXOS, allowing dynamic reconfiguration without hardware changes. Standard 3-meter and 5-meter fanout cables are commonly used for rack-internal connections, while longer cables and optical breakout solutions support extended-reach applications within data networking infrastructure.
The Extreme 17121 operates within the existing power budget of Summit X650 switches and does not require additional power supplies or cooling modifications for standard configurations. The module’s integrated design ensures proper thermal management through the chassis fan system, with power consumption automatically managed by the switch’s power management subsystem. Organizations should verify that their current Summit X650 power supply configuration meets the increased power requirements, particularly when fully populating all ports with high-power optical transceivers or when operating in higher ambient temperature conditions.
At Network Republic, our end-user accounts are covered by a 1-Year Warranty on all hardware—whether New, New Open Box, New Pull, Refurbished, or Refurbished by Manufacturer —from the date of delivery. This warranty covers hardware defects under normal use and allows for repair, replacement, or in-house credit at our discretion.
For resellers and wholesale purchases, we offer a 30-Day Warranty limited strictly to functional issues or defects upon arrival, including dead-on-arrival (DOA) items; it does not apply to problems arising after prolonged use. Resellers are responsible for inspecting and testing products within the 30-day window. This warranty excludes accidental damage, misuse, cosmetic wear, third-party modifications, and software-related issues unrelated to hardware failure. Check out our full warranty policy here.
Software licenses are not covered under the standard return and warranty policies and need to be activated on the hardware within 7 days of receipt. Any issues need to be reported immediately, within 10 days, so we can issue an exchange. Under no circumstances will refunds be issued for software licenses.
Our team of professionals are experts in networking hardware configurations and can assist you at any time during your purchasing process. We always recommend great price-performance alternatives based on current market price and availability. In need of assistance or looking for a specific part number? Request a quote today or chat with one of our IT specialists.
+1 214 292 4855
Email Us
+1.214.292.4855
Sales.us@networkrepublic.com