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Single-jack headset and a PC with two ports: which adapter to use
Connect a single-jack headset with mic to a PC with separate ports. Learn to tell splitters, TRRS, CTIA/OMTP and settings apart before you buy.
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Ethernet stuck at 100 Mbps: find the faulty link in the chain
Is your Ethernet stuck at 100 Mbps? Check the link speed, cable, wall sockets and adapter step by step before replacing the...
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HDMI audio extractor: optical, RCA and eARC
Find out when to use an HDMI audio extractor and how to choose optical, RCA or 3.5 mm jack output without losing...
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KVM for two computers: connection guide
Learn how to share a monitor, keyboard and mouse between two computers with a KVM switch. Check HDMI, USB, resolution, audio and...
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450 or 600 mm rack: how to choose the depth
Choose a 450 or 600 mm rack cabinet by measuring equipment, connectors, ventilation and cabling. Avoid buying a cabinet that is too...
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29 V transformer for power recliners: how to choose
Check voltage, current, polarity and connector before replacing the 29 V transformer of a power recliner chair or electric sofa.
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OFC or CCA speaker cable: gauge and distance
Compare OFC and CCA speaker cable and choose the cross-section by distance, power and installation. A practical guide with common mistakes.
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HDMI splitter or HDMI switch: differences and which to choose
Learn the difference between an HDMI splitter and an HDMI switch, what signal each one handles and how to choose without losing...
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How to extend USB: active cable or extender over UTP
Learn how to extend a USB connection: compare passive cable, active extension and extender over UTP by distance, speed, power and device.
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BNC and RG59 cable for CCTV: connectors and assembly
Learn how to choose 75 ohm BNC and RG59 cable for HD analogue CCTV, assemble crimped connectors and avoid picture faults.
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RJ11, RJ12 and RJ45: differences for telephone and network
Compare RJ11, RJ12 and RJ45: positions, contacts, uses and compatibility to choose the right telephone or network cable and avoid mistakes.
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SATA data or power cable: differences from Molex and PCIe
Learn to tell SATA data and power, Molex and PCIe apart, and connect hard drives or SSDs without forcing connectors or assuming...
