Cisco UCS C240 M3 High-Density Rack Server (Small Form Factor Disk Drive Model)
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CONFIGURING the SERVER
Choose Optional Twinax Cables
Table 12 lists the copper twinax cables available for the PCIe cards. You can choose cable 
lengths of 1, 3, 5, 7, or 10 meters. The two longer cables (7 and 10 meters) are active, which 
means that they contain active components within the SFP+ housing to improve signal quality.
Approved Configurations
(1) Choose Up to Two Twinax Cables for Each Network Card Ordered
■ You may choose one or two twinax cables for each compatible PCIe network card ordered. 
The cables can be different lengths; however, you would normally order two cables of equal 
lengths to connect to the primary and redundant network switching equipment.
Choose Optional SFP Modules
Optical Cisco SFP+ modules are listed in Table 13.
Approved Configurations
(1) Choose Up to Two SFP+ Modules for Each Network Card Ordered
■ You may choose one or two SFP+ optical modules cables for each compatible PCIe network 
card ordered. You would normally order two modules for connecting to the primary and 
Table 12  Available Twinax Cables 
Product ID (PID) PID Description
SFP-H10GB-CU1M 10GBASE-CU SFP+ Cable (1 M)
SFP-H10GB-CU3M 10GBASE-CU SFP+ Cable (3 M)
SFP-H10GB-CU5M 10GBASE-CU SFP+ Cable (5 M)
SFP-H10GB-ACU7M 10GBASE-CU SFP+ Cable (7 M)
SFP-H10GB-ACU10M 10GBASE-CU SFP+ Cable (10 M)
Table 13  Available SFP Modules 
Product ID (PID) PID Description
SFP-10G-SR 10GBASE-SR SFP+ Module  
850 nm, multimode, SR, 3.3V, LC connector, with Digital Optical Monitoring
DS-SFP-FC8G-SW  8 Gbit SFP+ Module 
850 nm, multimode, SR, 3.3V, LC connector, with Digital Optical Monitoring