What port configurations does the Lenovo 95Y3311 EN4093R support?

Base configuration enables 14 internal 10GbE ports to compute nodes and 10 external 10GbE ports. Upgrade 1 adds 14 more internal ports (total 28) and 2x 40GbE QSFP+ external. Upgrade 2 unlocks full 42 internal and 14 external SFP/SFP+ ports, supporting up to 64x 10GbE connections via splitting.

What management options are available on the EN4093R switch?

Two internal GbE ports connect to chassis management module; external ports include 10/100/1000 Mb RJ-45 Ethernet and RS-232 Mini-USB for serial access. Supports local configuration via optional Flex System Management Serial Access Cable (90Y9338) with mini-USB-to-RJ45/DB9 adapters.

Is the EN4093R suitable for SDN deployments?

Yes, it includes OpenFlow support for software-defined networking, enabling programmable control of traffic flows. Combined with Layer 2/3 features like VLANs, QoS, and ACLs, it fits dynamic datacenter environments requiring automated orchestration.

What is the performance reliability of this switch?

Mean Time Between Failures (MTBF) is 236,805 hours at 40°C ambient. Form factor is Flex System embedded I/O module with hot-swap SFP/SFP+/QSFP+ transceivers and DAC cables, ensuring minimal downtime in enterprise blade systems.

What transceivers and cables are compatible?

Supports SFP/SFP+ transceivers for 10GbE and QSFP+ for 40GbE external uplinks; DAC cables also compatible. Not included; order separately. Flexible mapping allows internal 10GbE to map to external ports dynamically.

95Y3311 - Lenovo EN4093R 10Gb Scalable Switch Switch

Name: 95Y3311 - Lenovo EN4093R 10Gb Scalable Switch Switch
Brand: Lenovo
SKU: 95Y3311

95Y3311 - Lenovo EN4093R 10Gb Scalable Switch Switch | US IT Hardware

Product overview

The Lenovo Flex System Fabric EN4093R 10Gb Scalable Switch (95Y3311) is designed for high-performance computing environments within Lenovo Flex System blade chassis. It provides up to 42 internal 10Gb Ethernet ports connecting to compute nodes and 14 external SFP/SFP+ ports plus 2x 40Gb QSFP+ uplinks for aggregation. Layer 2 and Layer 3 switching capabilities, including OpenFlow for SDN, enable flexible topologies and easy connectivity. With 2GB RAM and 1GB flash, it supports advanced features like QoS, ACLs, and virtualization. Scalable via Features on Demand upgrades, it expands from 14 internal ports to full 42, ideal for dense server farms. Management includes 2x internal GbE to chassis CMM, external RJ-45 10/100/1000, and RS-232 ports. MTBF of 236,805 hours ensures reliability in 24/7 datacenter operations. Perfect for consolidating traffic in converged infrastructure, reducing cabling, and optimizing east-west bandwidth in cloud, HPC, and enterprise virtualization deployments.

Supports 42 internal 10GbE ports for blade connectivity.
Includes 14x external SFP/SFP+ and 2x 40Gb QSFP+ ports.
Layer 2/3 switching with OpenFlow SDN support enabled.
2GB RAM and 1GB flash for advanced feature processing.
MTBF 236,805 hours at 40°C for high reliability.
Flexible port mapping via Features on Demand upgrades.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	95Y3311
Brand	Lenovo
Condition	New
Model	EN4093R 10Gb Scalable Switch
Upgrades	Upgrade 1 (49Y4798): +14 internal/2x40GbE; Upgrade 2 (88Y6037): full ports
Product Line	Flex System Fabric
Product Type	10Gb Ethernet Scalable Switch
Certifications	FCC, ICES-003, CE Mark, CISPR 22 Class A, others
Hot-Swap Parts	SFP/SFP+/QSFP+ transceivers, SFP+/QSFP+ DAC cables
Switching Capabilities	Layer 2/3, OpenFlow, easy connect

Compatible systems

Optimized for Lenovo Flex System blade chassis with 10GbE compute node adapters; requires separate transceivers.

Lenovo Flex System
Model: Enterprise Chassis
Form factor: Embedded I/O Module
Generation: 2nd
Direct fit in I/O bays; connects to compute nodes with 10GbE adapters.

Best for

Blade Datacenter
Connects up to 42 compute nodes in Flex System chassis for high-density top-of-rack switching.
HPC Clustering
Delivers low-latency 10GbE fabric for parallel processing workloads across blade servers.
Cloud Infrastructure
Supports scalable OpenFlow SDN for dynamic multi-tenant virtual networks in private clouds.
Server Virtualization
Handles east-west traffic with L2/L3 features and port virtualization for VMware or Hyper-V.
Enterprise Aggregation
Aggregates blade traffic via 40Gb QSFP+ uplinks to core networks in branch data centers.
Converged Infrastructure
Reduces cabling complexity in Flex System with flexible internal-to-external port mapping.

External Ports	14x SFP/SFP+ ports, 2x QSFP+ ports
Internal Ports	42x 10 Gb Ethernet ports
Management Ports	2x GbE internal to CMM; 1x 10/100/1000 RJ-45 external; 1x RS-232 Mini-USB

Lenovo EN4093R 10Gb Scalable Switch Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Storage

Network & Communication

Physical Characteristics

Interface/Ports

Frequently asked questions

Lenovo EN4093R 10Gb Scalable Switch Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Shop these collections

Storage

Network & Communication

Physical Characteristics

Interface/Ports

Frequently asked questions