Rick,
 
the WS-F5521 is a "spare" Netflow Feature Card (NFFC), the WS-X5530-E2 is a Supervisor III module with a NFFC  and a spare uplink slot.
 
Physically, the WS-F5521 fits on the SUP III as a daughterboard.
 
Hope that helps.
 
Regards
 
Pete S.
-----Original Message-----
From: Rick Holden <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
Date: 28 September 2000 01:41
Subject: WS-F5521 or WS-X5530-E2

Could someone please explain to me the difference between these to cards.
 

WS-F5521 and WS-X5530-E2

I looked on Cisco's web site but still can't get a clear picture of what the difference is. They both seem to be supervisor card with NFFC, but the WS-F5521 card is alot less expensive. Why should I by the WS-X5530-E2 when the other is less then half the price. Thanks.

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