USB/Keyboard/Mouse
Storage/Disk
Network/Communications
Video/Audio
Power
100
Universal Serial Bus
USB
100
This storage interface is commonly used to connect internal hard drives
SATA
100
This familiar modular connector is commonly used for Ethernet network cables.
Ethernet RJ-45
100
System usually has three or more round ports. Microphone, stereo audio out, audio in, audio out
audio ports
100
Main motherboard Power connector used in early ATX systems
20 pin P1 Connector
200
This USB connector is small, reversible, and has become common on modern phones, tablets, and laptops.
USB 3.0 Type-C
200
This compact SSD form factor/interface is shown with an edge connector and is associated with small-form-factor storage.
M.2
200
This smaller modular connector was traditionally used for telephone lines.
RJ-11
200
transmits digital or analog video
DVI
200
Main motherboard Power connector used today
24-pin P1 connector
300
This small USB connector was commonly found on older smartphones and other compact devices.
USB 2.0 Micro-B
300
This high-speed storage connector/interface
U.2
300
This 9-pin serial connector was commonly used for older computer peripherals and communications equipment.
Serial RS-232 (DE-9)
300
Transmits digital video and audio, uses a locking-style shape and is common on PCs and monitors.
DisplayPort
300
This small 15-pin power connector is used to supply power to SATA drives.
SATA Power Connector
400
This round connector was commonly used for older keyboards and mice.
PS/2
400
This interface stands for Serial Attached SCSI and is used in enterprise storage systems.
SAS
400
This 25-pin connector was used for older parallel ports and some serial connections.
DB-25
400
This digital connector is widely used to carry high-definition video and audio.
HDMI Type A
400
This four-pin connector was commonly used to power older IDE/PATA drives and peripherals.
Molex 4-pin Connector
500
This older keyboard connector has five pins and was used before PS/2 became common.
AT Keyboard
500
This older 40-pin connector was commonly used for IDE/PATA hard drives and optical drives.
IDE 40-pin
500
This 5-pin connector is commonly associated with MIDI devices and music equipment.
MIDI / Gameport (DA-15)
500
Also called a DB-15 Port, this connector was widely used for analog computer video and has 15 pins arranged in three rows.
VGA / SVGA
500
usde by high-end video cards using PCIe x 16 slots to provide extra voltage
PCIe 6/8 pin connector