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The IBM Flex System™ EN4091 10Gb Ethernet Pass-thru Module offers easy connectivity of the IBM Flex System Enterprise Chassis to any external network infrastructure. This unmanaged device enables direct connectivity of the compute node in the chassis to an external top-of-rack data center switch. This module can function at both 1 Gb and 10 Gb Ethernet speeds. It has fourteen internal 10 Gb links, and fourteen external 10 Gb SFP+ uplinks.

The IBM Flex System™ EN4091 10Gb Ethernet Pass-thru Module offers easy connectivity of the IBM Flex System Enterprise Chassis to any external network infrastructure. This unmanaged device enables direct Ethernet connectivity of the compute node in the chassis to an external top-of-rack data center switch. This module can function at both 1 Gb and 10 Gb Ethernet speeds. It has fourteen internal 1 Gb or 10 Gb links, and fourteen external 1 Gb or 10 Gb SFP+ uplinks.

The following figure shows the IBM Flex System EN4091 10Gb Ethernet Pass-thru Module.

Did you know?

The IBM Flex System EN4091 10Gb Ethernet Pass-thru Module provides 14 internal and 14 external 10 Gb Ethernet ports, and it supports 1 Gb and 10 Gb Ethernet signaling for Converged Enhanced Ethernet (CEE), Fibre Channel over Ethernet (FCoE), and other Ethernet-based transport protocols.

IBM Flex System, a new category of computing and the next generation of Smarter Computing, offers intelligent workload deployment and management for maximum business agility. This chassis delivers high-speed performance complete with integrated servers, storage, and networking for multi-chassis management in data center compute environments. Furthermore, its flexible design can meet the needs of varying workloads with independently scalable IT resource pools for higher utilization and lower cost per workload. While increased security and resiliency protect vital information and promote maximum uptime, the integrated and easy-to-use management system reduces setup time and complexity, providing a quicker path to return on investment (ROI).

Features and specifications

- The IBM Flex System EN4091 10Gb Ethernet Pass-thru Module has the following features and specifications:
- Internal ports: Fourteen internal full-duplex Ethernet ports that can operate at 1 Gb or 10 Gb speeds.
- External ports: Fourteen ports for 1 Gb or 10 Gb Ethernet SFP+ transceivers (support for 1000BASE-SX, 1000BASE-LX, 1000BASE-T, 10GBASE-SR, or 10GBASE-LR) or SFP+ copper direct-attach cables (DAC). SFP+ modules and DAC cables are not included and must be purchased separately.
- An unmanaged device that has no internal Ethernet management port, but is able to provide its vital product data (VPD) to the secure management network in the Chassis Management Module.

Lenovo EN4091. Ethernet interface type: 10 Gigabit Ethernet, Gigabit Ethernet, Ethernet LAN data rates: 1000,10000 Mbit/s, Copper ethernet cabling technology: 1000BASE-T. Fiber optic connector: LC, Fiber ethernet cabling technology: 1000BASE‑LX, 1000BASE‑SX, 10GBASE-LR, 10GBASE-SR. Dimensions (WxDxH): 15.8 x 12.5 x 1.18" (401 x 317 x 30 mm), Weight: 8.16 lbs (3.7 kg)

Ethernet interface type	10 Gigabit Ethernet, Gigabit Ethernet
Ethernet LAN data rates	1000,10000 Mbit/s
Copper ethernet cabling technology	1000BASE-T
Full duplex	Yes
Networking standards	IEEE 802.3ab, IEEE 802.3ae, IEEE 802.3z
Fiber optic connector	LC
Fiber ethernet cabling technology	1000BASE‑LX, 1000BASE‑SX, 10GBASE-LR, 10GBASE-SR
SFP+ module slots quantity	14
Dimensions (WxDxH)	15.8 x 12.5 x 1.18" (401 x 317 x 30 mm)
Weight	8.16 lbs (3.7 kg)
Harmonized System (HS) code	85176990
SFP/SFP+ slots quantity	14