NEC 1000BASE-T Manual page 12

Do not plug/unplug the power cord with wet hands. There is a risk of an
electric shock.
When you attach/detach N8403-012 adapter to/from the server, make
sure to remove first the CPU blade where this adapter is build-in.
Otherwise, there is a risk of an electric shock.
Use a conforming power source for the server to its specifications.
Otherwise, there is a risk of a fire or current leakage.
Be careful not to catch or hurt your finger when attaching/detaching
N8403-012 adapter to/from CPU blade, and when attaching CPU blade
to Blade Server Assemble Unit.
When you dispose this product, be certain to observe your local
disposal regulations. For details, consult your municipal office.
Attach this User's Guide and accessories of this product if you are
transferring (or selling) this product to a third party.
N8403-012
Caution Observe fully.
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1000BASE-T 接続ボード(2ch)
1000BASE-T Adapter(2ch)