Network card is a network component working in the Data link layer, is the interface connecting computer and transmission medium in LAN, not only can realize the physical connection and electrical signal matching with LAN transmission medium, but also involves the sending and receiving of frames, the encapsulation and unsealing of frames, media access control, data encoding and decoding, and the function of data caching.
We offer 1 year to 3 years warranty based on different products, we replace the RMA by a new product so you can sell it again.
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