Ports and
Connectors
USB
Universal Serial Bus (USB) is an industry standard that establishes specifications for cables
and connectors and protocols for connection, communication and power supply (interfacing)
between computers, peripherals and other computers.
USB C
USB-C features a new, smaller connector shape that’s reversible so it’s easier to plug in.
USB-C cables can carry significantly more power, so they can be used to charge larger
devices like laptops. They also offer up to double the transfer speed of USB 3 at 10 Gbps.
PS/2
PS/2 is a "port" while USB is a "bus" The difference is a port is designed to connect a single
device, while a bus is designed to connect many devices together. I currently have about 5
USB devices connected to my computer. They can all be connected to a single USB host
controller using a hub.
DE-9 PORT
The D-subminiature or D-sub is a common type of electrical connector. They are named for ...
Systems utilizing the DE9 connector for their game port included the Texas Instruments
TI-99/4A; Atari 8-bit and ST lines; the Commodore
DVI
● Uncompressed High Quality Video
to LCD
● 3 Versions DVI- A, DVI-D, DVI-I
● Dual link Extra pins for higher Res
Dual =2560 x 1600 Resolution
Single=1920 x 1200
RCA
Radio Corporation of America
Coaxial
Standard RG6, RG 11, RG59 (Radio guide #) but wider range
in most cases, coaxial cables fall short in terms of data speed.
RJ-11
Registered Jack-11
Ethernet
Cat 7 Vs Cat 8 Comparison
While comparing these cables transmission frequency and cabling length are of great
importance. Here is the detailed comparison:
Performance:
Cat7 cable offers performance up to 600 MHz Whereas Cat8 offers up to 2000 MHz
Cabling Length:
The maximum cabling length of Cat 7 network is 100m with 10 Gbps. Whereas Cat8 is
limited to 30m cabling length with 25 Gbps or 40 Gbps.
parallel port
A parallel port is an external interface commonly found on PCs from the early 1980s to early
2000s. It was used to connect peripheral devices such as printers and external storage
devices.
SATA
Serial ATA (SATA, abbreviated from Serial AT Attachment) is a computer bus interface that
connects host bus adapters to mass storage devices such as hard disk drives, optical drives,
and solid-state drives.
HDMI, VGA, DVI,
DISPLAYPORT
What is the Difference ?
VGA
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VIDEO GRAPHICS ARRAY
Analog not Digital
Not capable of pixel perfect
Standard resolution
Video only, no audio
Considered old school (1987)
HDMI
● High Definition Multi-Media Interface
● Both digital video and audio signals
● Only Digital, can not convert analog to digital
(VGA)
● 1.4, 2.0, 2.1 Added ability
● Great choice / Dominant
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DISPLAY PORT
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High performance
Daisy Chain
Locks in
Royalty Free
8k at 60 Hz
THUNDERBOLT
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Started out in 2011 as Apple only, has evolved to be more
inclusive
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High speed technology interface outputs one signal from a
combo of PCI express and Display port
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Can Daisy Chain up 6 devices
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Versions 1 & 2 use same connector as mini displayport
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V3 uses USB type 3 connector