800-28038-01 and 800-28038-02is the internal Cisco part number for a Catalyst Series Blank Line Card Slot Cover. Foxconn is the contract electronics manufacturer that stamped and assembled the hardware for Cisco Systems.Key Hardware Functions

• Airflow Management: Seals unpopulated line card slots to maintain proper internal static pressure and optimized cooling airflow across active blades.
• EMI Shielding: Blocks Electro-Magnetic Interference from escaping or entering the chassis, ensuring compliance with radiofrequency standards.
• Debris Protection: Keeps dust, loose objects, and workplace debris away from the sensitive open backplane connectors inside the switch.

Shipping Speed:- Items ship out within 3 business days.- Orders placed on Weekends may be delayed due to volume, so orders made Friday Night to Sunday Night may ship on Wednesday at the latest, but will do a good faith effort to ship out ASAP.- Business days are Monday, Tuesday, Wednesday, Thursday, Friday - and exclude USA Federal Holidays and Major State Holidays.
Services Offered:- Items are shipped USPS Ground Advantage and FedEx Home Delivery or FedEx Ground Economy, or UPS Ground - whichever is lowest cost, as shipping is free to buyer.- If you need USPS Priority Mail 2-3 day, please contact me first.
Overnight Shipping:- I do not ship out overnight.
Drop Shipping:- I do not support drop-shippers, unless you contact beforehand and get agreement that I can ship without logos/ packaging/etc.- If you buy an item, and leave a note demanding specific action - I will cancel the order if the order, especially if it says "please package in a new box, don't use any tape, please ship today, please deliver to FedEx tonight and send a picture of receipt of dropoff".- If you simply want the order shipped with no invoice, and no logos/branding, that is totally fine- I ship using bright ORANGE tape with BLUE shipping labels.
Returns:- I take returns for defective or damaged items, and I will provide a free return shipping label for a full refund- I do not take returns for items for any other reason, but may make exceptions for circumstances that are out of buyer's control (please contact me)- I do track serial numbers, or place serial stickers on items, and will check these on return of items - so please give me 48 hours to go and process your return
Location:- I am based out of Murray, Utah. 100% American owned business.- I do not do local pickup without prior arrangement, even if you're 2 blocks away.- This is a warehouse, not designed for walk-in customers so please excuse the strict rules. Parking is limited and it's in an industrial area.