The NC524SFP module, which is an option unique to the DL370 G6 and ML370 G6 ProLiant servers, upgrades two of the integrated 1GbE ports to 10GbE ports. Only one NC524SFP is supported in each system. This dual port module supports SFP+ (Small Form-factor Pluggable) connectors, requiring either Direct Attach Cable (DAC) for copper environments, or fiber transceivers supporting SR, LR, or LRM optics plus fiber cables for fiber optic environments. The NC524SFP offers advanced server features that ProLiant customers have come to expect, such as support for TCP checksum and segmentation (LSO) offload capability, VLAN tagging, jumbo frames, IPv6, and more.

The two ports on the NC524SFP have a theoretical maximum of 40Gbps full-duplex, bi-directional throughput.
Using Direct Attach Cable (DAC), available separately from HP, the NC524SFP runs on copper cable. Fiber optic modules and cables, available separately from HP, allow the NC524SFP to connect to SR, LR, and LRM environments.