
Computer and USB accessories
28 results


From$19.28
Programmable Macro Keypad, 3 Keys and Knob or 4 Keys, RGB, Hotswap Red Switches, USB-C
Est. delivery 7-18 days

From$9.04
Kailh Hot-Swap PCB Sockets, CPG1511 for MX Switches or 1350 for Choc Low Profile
Est. delivery 7-16 days

From$10.29
USB or USB-C to RJ45 Ethernet Adapter, RTL8153 Gigabit or RTL8152B 100Mbps
Est. delivery 7-23 days

From$9.40
HDMI Dummy Plug, 4K Virtual Display Emulator for Headless PCs, DDC EDID
Est. delivery 7-18 days


From$9.91
Multi-Card Reader for SD, TF, CF and MS Cards, 8-in-1 USB 3.0 or 6-in-1 USB 2.0
Est. delivery 6-12 days

From$10.62
Kailh Choc V2 1353 Low Profile Switches, Red Linear, Blue Clicky or Brown Tactile
Est. delivery 9-15 days

From$15.12
SD and Micro SD Card Reader, UHS-II SD 4.0 or SD 3.0 Versions, USB-C or USB-A
Est. delivery 7-18 days

$16.22
2K HDMI Dummy Plug with HDR, 2560x1440 EDID Emulator, up to 144Hz, for Headless PCs
Est. delivery 7-16 days

$13.54
All-in-One USB 2.0 Memory Card Reader for SD, microSD, CF, xD, MMC and Memory Stick
Est. delivery 7-18 days

From$37.33
YMDK Blank PBT Keycaps for Ortholinear MX Keyboards, XDA V2 or DSA, Planck, Preonic, XD75, Corne
Free shippingEst. delivery 5-17 days

From$13.29
Kailh Choc V1 1350 Red Linear Low-Profile Switches for Keyboards and Hitbox Controllers
Est. delivery 5-16 days

From$15.37
M.2 SSD Enclosure, USB Type-C, NVMe or SATA, up to 10Gbps, Aluminum, 2230 to 2280
Est. delivery 7-16 days

From$39.27
USB 3.0 Hub with Individual Port On/Off Switches, 5Gbps, 4-Port or 7-Port
Free shippingEst. delivery 10-22 days

From$90.51
Sipeed NanoKVM-USB Finger-Sized 4K USB KVM for Servers and SBCs
Free shippingEst. delivery 7-18 days


From$31.95
Makerbase CANable 2.0 USB to CAN Adapter, CAN FD, slcan, SocketCAN, candleLight, for Klipper
Free shippingEst. delivery 7-17 days

$44.65
ADuM3165 USB 2.0 High-Speed Isolator, 480Mbps, 1500V Isolation, for DAC and Audio
Free shippingEst. delivery 7-16 days

$13.53
ADUM3160 USB to USB Isolator, USB 2.0 Full Speed 12Mbps, Host-Powered, Driver-Free
Est. delivery 6-12 days

From$21.10
RTL8156B USB to 2.5G Ethernet Adapter, 2500/1000/100Mbps RJ45, USB-A, Type-C or 2-in-1
Free shippingEst. delivery 7-16 days

From$11.63
MS2130 USB Video Capture Card, 1080P, USB 3.0 or USB 2.0, for Game Recording and Streaming
Est. delivery 6-12 days

$30.98
LINCUKOO Zigbee 3.0 USB Dongle, EFR32MG21, for Home Assistant, Zigbee2MQTT and openHAB
Free shippingEst. delivery 6-12 days

From$16.84
EWIND EW-S Series Ethernet Switch, 5 or 8 RJ45 Ports, 10/100 or Gigabit
Est. delivery 7-16 days
About computer and USB accessories
Desk and lab accessories that make a computer more useful for electronics work. USB isolators built on the ADuM3160 and ADuM3165 separate a laptop's USB port from a circuit with its own ground, and USB-to-RS485 and CANable USB-to-CAN adapters talk to industrial and vehicle buses. HDMI and DisplayPort dummy plugs let a headless machine run as if a monitor were attached, and there's a NanoKVM-USB, a USB video capture card, card readers, an M.2 SSD enclosure, USB and USB-C to Ethernet adapters up to 2.5 Gbps, a USB 3 hub with a switch on each port and an EFR32MG21 Zigbee dongle for home automation.
For keyboard builders there are Kailh Choc low-profile switches, hot-swap sockets, blank PBT keycaps in DSA and ortholinear sets, and programmable macro keypads. Check the connector (USB-A or USB-C) and the USB speed you need: a USB 2.0 device won't run any faster on a USB 3 port.
28 listings today, from $5.74; half cost $14.33 or less.
Questions about computer and USB accessories
- What is an HDMI dummy plug for?
- It makes a computer, Raspberry Pi or mini PC behave as if a monitor were connected, so it keeps a desktop running for remote access and GPU work with no screen attached.
- Why use a USB isolator?
- It separates your computer's USB ground and power from the circuit you're working on, which breaks ground loops and keeps a wiring fault away from the computer's USB port. Check the speed: the ADuM3160 runs at USB full speed (12 Mbps) and the ADuM3165 at high speed (480 Mbps).
- Do Kailh Choc switches take MX keycaps?
- Choc V1 switches have their own low-profile stem and need Choc keycaps. Choc V2 switches use an MX-style cross stem, so MX-compatible keycaps fit them. Hot-swap sockets are made for one switch family, so match those too.
- How long does delivery take, and what does shipping cost?
- Most parts ship to Canadian addresses directly from our supplier partners, most of them outside Canada, and most orders arrive within 1 to 3 weeks; the product page shows its own estimate. Items marked eligible on their product page ship free once the eligible items in your cart total $20 or more (a cart of many low-priced parts needs more than $20 of them, and the cart shows how much). Until then, and for items that aren't eligible, each item pays its supplier's shipping quote for your address, and checkout shows every charge and the tax before you pay.
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