Computer Accessories | McMaster-Carr

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Electrical Connection

1" Circular Connector

Apple-Compatible 30 Pin

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Compliant with Exemptions

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Flat-Panel Monitor Mounting Plate

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Keyboard and Mouse

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High-Pressure Washdown

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Adjustable-Angle Elbow

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Operating System Compatibility

Electrical Connector Component

5,351 Products

Communication

Mice

Wired and wireless mice

10 products

Keyboards

Wired, wireless, foldable, and washdown keyboards

29 products

Web Cameras

Record and stream high-definition video and sound from your computer

1 product

Wrist Rests

Support your wrists while typing to reduce fatigue and strain

1 product

Memory Card Readers

Transfer data from a memory card to a computer

1 product

CDs

Record audio for playback on a computer or stereo

1 product

DVDs

Record video for playback on a computer or DVD player

1 product

Mouse Pads

Make it easier to control your mouse than a bare surface

3 products

Flash Drives

Store data, take it on the go, and transfer it to other devices with a USB port

6 products

Memory Cards

Store data from cell phones, laptops, and other mobile devices

3 products

Pointers

Shine the laser or extend the tip to direct attention during presentations

6 products

Screen Privacy Filters

Darken your computer screen when viewed from the sides so it's only visible to you

2 products

Screen Protectors

Shield your phone, tablet, teach pendant, or HMI screens from smudges and scratches

43 products

Keyboard Covers

Guard keyboards from spills and dust

3 products

Monitor Covers

Slip over your monitor to protect it from dust when not in use

5 products

Printer Covers

Fit over your printer to protect it from dust when not in use

3 products

Computer Covers

Fit over your computer to shield it from dust when not in use

2 products

Headphones

Listen to audio while blocking out the noise around you

1 product

Headsets

Make calls from computers and other devices or communicate over two-way radios

7 products

Telephone Cords

Connect telephones to data outlets

9 products

Telephone Connectors

Replace the plug on your phone cord, or extend your line by connecting cords together

12 products

Telephone Splitters

Connect multiple phone lines to a single telephone jack

4 products

Label Printer Tape

Replace the label tape in label printers

520 products

Label Printers

Create custom labels on the spot

59 products

Labels

Stick onto items to identify or convey information about them

14 products

Tags

Hang throughout facilities to convey information

4 products

Barcode Scanners

Read barcodes and send data to your computer

30 products

Stylus Pens

Scribble notes and enter data on touch screen devices without removing gloves or leaving smudges

2 products

Printer Toner

Replace empty toner cartridges in laser printers

99 products

Ink

Apply ink to rollers, pads, or stamps, then mark surfaces such as paper, fabric, metal, and plastic

26 products

Display Monitors

Present images, videos, and messages in crisp detail throughout your entire workday

4 products

Electrical Power, Networking, and Controlling

USB Cords

Transfer data between computers, printers, and mobile devices

260 products

Power Cords

Connect equipment and devices to a power source

205 products

Ethernet Cords

Send data between computers, printers, servers, and switches

327 products

DisplayPort Cords

Send video from computers to monitors and other displays

26 products

Video Adapter Cords

Send video between devices with different connections

8 products

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

21 products

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

199 products

Fiber-Optic Cable

Transmit signals between data centers and workstations in fiber-optic networks

12 products

Thunderbolt Cords

Transmit data and video at high speeds between PCs, mobile devices, and displays

2 products

USB Cord Locks

Keep your USB cord from shaking loose or being yanked out

2 products

DMX Cords

Connect to lighting equipment with five-pin XLR connections

3 products

Fiber-Optic Cords

Connect computers, servers, and switches in a fiber-optic network

34 products

Extension Cords

Extend the reach of power from an outlet

4 products

Robot Teach Pendant Cords

Connect robot controllers and teach pendants

25 products

Profibus Cords

Transmit data in automation systems and other networks

4 products

ix Industrial Cords

Send data or signals between equipment, such as a servomotor and encoder

6 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

62 products

Metric Circular Cords

Send power and control signals to equipment with metric connections

35 products

Audio Cords

Hook up speakers to an audio signal

13 products

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

65 products

Robot Controller Cords

Extend the distance between a robot arm and a controller

3 products

DisplayPort Connectors

Connect two DisplayPort cords of the same gender and connection type

1 product

USB Connectors

Plugs, sockets, receptacles, and adapters to make USB connections

74 products

Amphenol Connectors

Attach wires to a circuit board

32 products

RJ45 Connector Repair Clips

Snap onto broken Ethernet plugs to restore their ability to make secure connections

1 product

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

85 products

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

27 products

HDMI Adapters

Convert one HDMI size or style to another

14 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

50 products

RJ45 Connector Caps

Protect sockets and maintain the IP67 rating when not in use

1 product

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

32 products

Coaxial Connectors

Plugs, sockets, receptacles, and adapters to make coaxial connections

54 products

Video Adapters

Convert from one video connection to another

7 products

USB Connector Caps

Shield unused USB connectors from damage, contaminants, and moisture

3 products

D-Sub Connectors

Plugs, sockets, receptacles, and adapters for connecting computers, monitors, and printers

145 products

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

6 products

Fiber-Optic Connectors

Join fiber-optic cords that have the same gender and connection type

10 products

Metric Circular Connector Caps

Keep metric circular connectors safe when they're not in use

8 products

Mini Connector Caps

Shield mini connectors when they're not in use

13 products

Mil. Spec. Connector Caps

Protect Mil. Spec. connectors when they're not in use

12 products

Power Connector Caps

Cover pin-and-sleeve power connectors when they're not in use

38 products

Han Connectors

Plugs and sockets to make Han connections

4 products

RJ45 Connector Security Clips

Lock Ethernet cords in place to prevent unauthorized removal from ports

3 products

Coaxial Connector Caps

Terminate the end of an unused coaxial cable

2 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

379 products

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

28 products

Outlet Strips

Plug in multiple devices to power them from a single outlet

115 products

Patch Panels

Expand and reconfigure a data network when space inside your enclosure is limited

1 product

USB Chargers

Power up mobile devices and other electronics

27 products

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

3 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Telephone Wiring Blocks

Keep telephone cable organized and accessible

2 products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Outlet Strip Mounts

Snap in outlet strips for quick mounting on flat surfaces

4 products

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

USB Extenders

Increase the reach of USB devices with a transmitter and receiver

3 products

Wall Plates

Cover switches and outlets for a finished look or to close them off when not in use

34 products

Punch-Down Tools

Terminate and cut wire on 66 and 110 wiring blocks

5 products

Computer Monitors

Display information in tough conditions such as on factory floors and outdoor jobsites

9 products

Single-Board Computers

Combine the functionality of a PC with the flexibility of a development board’s inputs and outputs

19 products

PLCs

Program complex automation jobs by combining the functionality of a relay, timer relay, and switch

37 products

PLC Expansion Modules

Connect switches, transmitters, and actuators to your PLC for complex automation jobs

39 products

Computers

Sturdy and reliable for harsh industrial jobsites, from frigid freezers to sweltering foundries

18 products

Development Boards

Prototype electronics and build simple automation systems by configuring inputs and outputs

28 products

Single-Board Computer Enclosures

Protect your Raspberry Pi, Arduino, or other board from dust and impact

9 products

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

17 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

HMIs

Control PLCs, inverters, and other automated equipment

24 products

Ethernet Switches

Expand your data network by connecting computers, printers, and servers

68 products

Emergency Stop Switches

Cut power to equipment during emergencies

3 products

Power Supplies

Convert your facility's AC voltage to power equipment that runs on DC voltage

1 product

Voltage Adapters

Change AC voltage to DC voltage to power a device

284 products

Inverters

Transform DC voltage to power devices that run on AC voltage; prevent overload damage

12 products

Power Over Ethernet Injectors

Power devices such as routers and wireless access points in areas lacking a power outlet

5 products

Wire and Cable Crimpers

Crimp connectors onto electrical wire or cable

179 products

Wire Stripper/Crimpers

Strip wire and crimp connectors with one tool

14 products

Wire and Cable Strippers

Remove the outer insulation on wire and cable

24 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

4 products

Computer Cabinets

Shield a computer while keeping a clear view of its screen

8 products

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

5 products

Monitor Enclosures

Shield displays and televisions from impact, dust, and splashing liquids

18 products

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

7 products

Containers, Storage, and Furniture

Desks

Stand up or sit down to work in offices and plants

70 products

Tables

Fixed-height, adjustable-height, and folding tables

497 products

Workbenches

Often used for shop work with durable tops and storage for tools

127 products

Standing Desk Converters

Change any desk or table into a stand-up-height work surface

3 products

Computer Stands

Adjust the shelves to hold computers and components at a comfortable working height

5 products

Phone Cases

Safeguard phones from damage

18 products

Keyboard Trays

Position keyboards at a comfortable distance, height, and angle

4 products

Laptop Bags

Protect laptops while carrying them

3 products

Teach Pendant Cases

Protect robot teach pendants from drops, scrapes, and spills to prevent downtime due to damage

29 products

Tablet Holders

Walk around your facility with your tablet firmly in hand

1 product

Phone Armbands

Check work orders or respond to dispatch from your phone right on your arm

1 product

Computer Holders

Save surface space by mounting computers to the underside of desks

1 product

Shelving Covers

Place over heavy duty wire shelving units to keep out dust from all sides

7 products

Cases

Protect equipment from impact with a foam-padded interior

99 products

Building and Machinery Hardware

Monitor Mounts

Mount monitors to walls, benches, ceilings, and other surfaces

22 products

Laptop Stands

Adjust the height and angle of your laptop for comfortable viewing and typing

2 products

Monitor Stands

Support a monitor at viewing height

6 products

Tablet Stands

Raise and angle tablets for easy use

4 products

Positioning Arms

Mount and position tools and other small equipment

12 products

Teach Pendant Holders

Store teach pendants conveniently near robots but out of harm’s way

6 products

Phone Mounts

Keep smartphones in sight and within reach

4 products

Laptop Mounts

Create a secure mounting point for your laptop, such as on a cart handle or vehicle

3 products

Tablet Mounts

Position your tablet within view while keeping your hands free

10 products

Radio Mounts

Keep radios and other devices that don't have a uniform shape in sight and within reach

4 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

15 products

Cable Locks

Wrap around gates, tools, and equipment to prevent break-ins or theft

2 products

Fabricating and Machining

Multitools

A variety of tools and blades all in one

1 product

Measuring and Inspecting

Data Cable Identifiers

Trace unshielded data and telephone cables to their source

1 product

Data Cable Testing Adapters

Isolate the signals of a data line by connecting your testing device to an Ethernet wall outlet

1 product

Line Tester Adapters

Connect a testing device to a telephone line

1 product

Data Cable Testers

Identify open, short, and incorrectly wired circuits in coaxial and data cable

3 products

Line Testers

Diagnose issues in telephone lines or Ethernet cables

5 products

Line Testing Amplifiers

Pair with line testers to identify cables without touching them

3 products

Facility and Grounds Maintenance

Computer Screen Cleaners

Wipe dust and dirt from computer screens, then dry them for a streak-free clean

1 product

Multipurpose Cleaners

Remove dirt, grime, and stains from most surfaces, even in clean rooms and freezers

4 products

Spray Dusters

Clean hard-to-reach spaces with a burst of air

13 products

Vacuum Cleaners

Wet/dry, upright, hand-held, and backpack vacuums

12 products

Tarps

Shield equipment from weather, flames, chemicals, and more

53 products

Fastening and Joining

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

1 product

Material Handling

Carts

Transport objects around your facility

31 products

Safety Equipment

Earmuffs

Dampen loud noises to protect hearing

10 products

Earplugs

Protect your hearing in loud environments without the bulk of earmuffs

13 products

Earmuff and Headset Covers

Keep shared earmuffs, headsets, and headphones germ-free without sterilizing them

2 products

Lighting

Web Conferencing Lights

Brighten your face during video calls

2 products