These are Genuine Intel E5-2667 CPU's 2.9Ghz Base 3.5Ghz Turbo 6 Core 12 Threads
They are from HP Blade servers, and are compatible with Many Servers such as Dell R620's R720's and HP Dl380 Dl360 G8's IBM M4's etc
Matched Pairs available, if you buy in lots of 2 I will always pair them up from the original server (where they are currently stored)
The photos are from the V2 version which is available on another listing and apart from the CPU is identical to where these come from.
Best to check your firmware/bios to ensure they are compatible before you upgrade, also the mainboard revision can also determine whether the CPU is compatible or not.
You should also confirm your power supplies will support the CPU in question.
If you are not sure please ask before buying for confirmation