Links

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  Cat Cables

  Here are the main Category (Cat) cables relevant to the current CompTIA A+ certification (Core 1: 220-1101/220-1201 exams, as of 2025). These focus on twisted-pair copper Ethernet cables (typically UTP or STP), their common speeds, distance limits, and key features you need to know. CategoryMax SpeedMax DistanceFrequencyKey Notes / Common UseCat 5100 Mbps (Fast Ethernet)100 meters100 MHzOlder standard; supports 100BASE-TX. Rarely used/installed today but still mentioned. Can sometimes handle 1 Gbps unofficially, but not reliable.Cat 5e (Enhanced)1 Gbps (Gigabit Ethernet)100 meters100 MHzMost common for modern Gigabit networks (1000BASE-T). Reduced crosstalk compared to Cat 5. Backward compatible.Cat 61 Gbps (reliable) 10 Gbps (up to ~55 m)100 meters (1 Gbps) 55 meters (10 Gbps)250 MHzBetter shielding and reduced noise. Supports 10GBASE-T over shorter runs. Common in newer installs.Cat 6a (Augmented)10 Gbps (10GBASE-T)100 meters500 MHzFull 10 Gbps over 100 m. Improved crosstalk/noise specs. Often required for 10 Gigabit Ethernet.Cat 710 Gbps (reliable) Up to 40 Gbps possible100 meters600 MHzFully shielded (STP). Higher performance; used in data centers or high-interference environments. Backward compatible with RJ-45.Cat 825–40 Gbps30 meters2000 MHzVery high speed, heavily shielded. Primarily for data centers/servers (25GBASE-T/40GBASE-T). Short distance limit. Rarely seen in typical LANs.

  Posted by Ronald Clanton Aug 14
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  Internal Computer Hardware — Introduction to Information and Communication Technology

  Internal Computer Hardware — Introduction to Information and Communication Technology

  Posted by Ronald Clanton September 3, 2024
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  COMPUTER HARDWARE | BMMC Students Works

  Posts about COMPUTER HARDWARE written by bmmcstudents

  Posted by Ronald Clanton September 3, 2024
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  19. CPU - types, speed, performance · Chan Blog

  19. CPU - types, speed, performance · Chan Blog

  Posted by Ronald Clanton September 3, 2024
• https://www.showmecables.com/blog/post/computer-data-cables

  https://www.showmecables.com/blog/post/computer-data-cables

  Posted by Ronald Clanton September 3, 2024
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  Top 10 Essential Computer Cables You Should Know About - Lithgow Technology Services

  Top 10 Essential Computer Cables You Should Know About Computer cables we all need and why is USB-C Better than the rest

  Posted by Ronald Clanton September 3, 2024
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  comptia A+ Essentials - Various Memory (ram) Types And Their Features

  RAM system's short-term memory. Whenever computer performs calculations, it temporarily stores the data in the RAM until it is needed.

  Posted by Ronald Clanton September 3, 2024
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  What is Motherboard in a Computer? - Scientech Easy

  A motherboard in a computer is a large rectangular circuit board that sits inside a computer case and controls the operations of all other

  Posted by Ronald Clanton September 3, 2024