Section 2: Cable Types Flashcards by Ross Reed

Bit

Binary Digit a single “bit” can store one of two values: 1 or 0

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Nibble

4 bits i.e. 0110

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Byte

8 bits i.e. 11010101

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“bps”

Bits per second

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1000 bits

1 Kilobit (1Kb)

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b =

bits

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B =

Bytes (8x as many bits)

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1 million bits =

1 Megabit (Mb)

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1 million bytes =

1 Megabyte (MB)

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1 billion bits =

1 Gigabit (Gb)

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1 billion bytes =

1Gigabyte (GB)

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1 trillion bits =

1 Terabit (Tb)

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1 trillion bytes =

1 Terabyte (TB)

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USB:

Universal Serial Bus

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Modern USB port allows up to?

127 devices daisy chained per USB port

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Host Controller:

uses the same amount of bandwidth for all devices in a port

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USB 1.0: LowSpeed

Maximum transfer speed of 1.5Mbps - 0.1875MB/s

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USB 1.1: FullSpeed

Maximum transfer speed of 12Mbps - 1.5MB/s

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USB 2.0: HiSpeed

Maximum transfer speed of 480Mbps - 60MB/s

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USB 3.1GEN1 : SuperSpeed USB

Maximum transfer speed of 5Gbps - 500MB/s

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USB 3.1GEN2

Maximum transfer speed of 10Gbps - 1212.12MB/s

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USB 3.1Gen2x2

Maximum transfer speed of 20Gbps - 2424.24MB/s

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USB4

40Gbps - 5GB/s

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Longer cables have higher chances of?

resistance and speed and signal deterioration

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USB 1.0 Limitation length

3 meters (9ft)

USB 1.1/2.0 Limitation

5 meters (15ft)

USB 3.0/ USB4 Limitation

3 meters (9ft)

USB 1.0/2.0 Port Power =

500 milliamps/ 0.5 amps

USB 3.0 Port Power =

900 milliamps/ 0.9 amps (4.5W)

Dedicated power device port / PD port =

1500 milliamps/ 1.5 amps (7.5W)

HDMI:

High Definition Multimedia Interface (most widely used)

HDMI Category 1 (Standard):

used for video content. supports 1080p and 60 hertz

HDMI Category 2 (High Speed):

has great length of distance and high resolution allows up 4k/8k resolution and higher refresh rates 60/120/144 hertz. (premium high speed of 18Gbps and ultra high speed of 48Gbps)

HDMI Digital Content Protection (HDCP)

Allows a device to validate the connection i.e. ROKU

Display Port Interface (DP):

developed as a competitor to HDMI to avoid royalty fees and has all the same capabilities as HDMI

DVI: Digital Video Interface

supports analog and digital outputs

What are the 3 types of DVI and what do they do?

- DVI-A (Analog) only supports analog signals - DVI-D (Digital) only supports digital signals - DVI-I supports both digital and analog signals

VGA: Video Graphics Array

uses a 15-pin standard analog video interface port

Thunderbolt

acts like a display interface and can do data transfer

Thunderbolt 1 and 2 connector

is backwards compatible with Display Port(DP) they look identical to DP but are signified by a small lightning bolt

Thunderbolt 3:

physical interface that uses the same port as USB-C. Port fully compatible with USB-C however USB-C ports do not always support Thunderbolt 3

Serial:

can connect one device at a time

Thunderbolt 3 length limitation

maximum of 1.6ft which provides up to 40Gbps

Parallel:

can connect multiple devices at once

Thunderbolt 1 and 2 :

uses DP type connector

Thunderbolt 3 and 4 :

uses USB-C type connector

Lightning Cable:

specific propriety connector created by Apple for mobile devices has either USB-C or USB-A on other end of cable

SATA Cable: Serial Advanced Technology Attachment

Standard method of connecting a storage device to a motherboard.

SATA 7-Pin Data Cable

Performs the data transfer and does not supply power.

SATA 15-Pin Power Connector

Provides the power and does not transfer data.

SATA1:

supports speeds of up to 1500Mbps(1.5Gbps)

SATA2:

supports speeds of up to 3000Mbps(3Gbps)

SATA3:

supports speed of up to 6000Mbps(6Gbps)

External SATA (eSATA):

Cable outside of case

USB 1.0-2.0 Era Types

USB Type- A USB Type- B USB Mini B USB Micro B

USB 3.0 Era Types

USB Type- A super speed USB Type- B USB Type- C USB Micro B Super Speed

HDMI Types

Type: A standard Type: C mini Type: D micro

2 Display Port Types

Full size Display Port (DP) has button release Mini Display Port

Display Port data transfer speed

20Gbps

Parallel Advanced Technology Attachment(PATA)

use IDE cables and connectors and standards but is differentiated from SATA. Gray flat ribbon cable 40-pin connector

MOLEX Power Connector

4-pin connector attached directly from the power supply to a device

Small Computer Systems Interface(SCSI)

Legacy parallel bus connector that allows multiple devices to be daisy chained together

Narrow SCSI

supports up to 7 devices

Wide SCSI

supports up to 15 devices

High Density Cable

68-pins used for carrying data required a MOLEX connector to provide additional power to that device

Single Connector Attachment(SCA)

80 pins incorporated both power and data