Useful links for checking warranty

This applies not only to laptops or PCs, but also to servers, switches, and other “heavy” IT hardware. We decided to record a short video instruction on how to see the warranty of the device, and, no less important, its configuration / specification.
Checking the warranty is especially useful immediately after purchase, or even better - before buying any IT equipment. Under the cat are useful links and a couple of short videos on how to check the warranty of devices from manufacturers such as HP, Dell, Cisco, APC, etc.
Useful links to check the warranty and equipment of your device
HP Hardware Warranty Check Video
Dell Hardware Warranty Check Video
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MUK-Service - all types of IT repair: warranty, non-warranty repair, sale of spare parts, contract service