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9.2* out of 10

Intel X520-SR2

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Reviews and Problems with Intel X520-SR2

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Overall 10

Easy to setup

E. Levis, Amazon
2 weeks ago
  • Summary: We use these 10Gb Ethernet adapters in a pair of Dell R720xd servers running Red Hat Linux. The servers perform disk-to-disk backups of other servers in our business environment. The 10Gb NICs help us backup large data sets with enhanced throughput. A big help. Easy to setup. Highly recommended.
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Overall 8

Beware if using ESXi

Scott Sawin, Amazon
15 February 2014
  • Summary: We put these in our Dell R820 servers running VMWare and learned a valuable lesson. VMWare doesn't not support them unless you are using a twinax cable or an Intel SFP. I tried many different 10GB SFP's but no luck. They will light up but ESXi 5 and up does not list it as a valid SFP so they are shutdown. I found a KB article which talks about this and VMWare confirmed.
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