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Most likely you can. That depends connector type and supported speeds of network card.<br />
In the case of Windows you can check speed:<br />
Control Panel\Network and Internet\Network Connections -&gt; Network Card Properties<br />
&nbsp;<a href="https://filedb.experts-exchange.com/incoming/2016/09_w39/1117275/network-speed.jpg" target="_blank" title="SupportedSpeeds (67 KB)"><img alt="SupportedSpeeds" class="file-block lazyload" style="max-width: 401px;" data-src="https://filedb.experts-exchange.com/incoming/2016/09_w39/1117275/network-speed.jpg" /></a>
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network-speed.jpg

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Yes, that will work. Nothing special to do so far as I know. &nbsp;It will just use the slower speed.
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As suggested by John no special settings required. it will work the least speed supported. i.e. 1Gbps
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It really depends if the NIC supports slower speeds. &nbsp;If it does there's no issue, but if it only supports 10Gbps it won't work.<br />
<br />
What 10G NIC do you have?
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While I agree that most NICs will support the lower speed, John, don't take it for granted that all will. &nbsp;If it's 802.3an-compliant it will work at lower speeds, but if it's a specific type of card it might not.
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Agree with Craig. <br />
Rare case I found NIC doesn't support, Shows as disconnected and we have to manually change the speed to get it working.
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<div class="content wysiwyg-content">
Can i connect 10 Gbps &nbsp;Network card to 1 Gbps Ethernet Switch using cat 6a cable ???
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Can i connect 10 Gbps  Network card to 1 Gbps Ethernet Switch using cat 6a cable ???

Can i connect 10 Gbps  Network card to 1 Gbps Ethernet Switch ..??

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.