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Cables, connectors and USB power

Battery and signal connectors, USB-C power boards, HDMI and Ethernet cables, RF pigtails and heat shrink for desks, labs and builds.

61 results

About cables, connectors and USB power

Cables, connectors and the small power parts that tie a build together. Battery and power connectors include XT30, XT60 and anti-spark XT90 plugs, SB50 Anderson-style connectors, GX12 and GX16 aviation connectors and 5.5 x 2.1 mm DC barrel pigtails. Signal wiring covers JST SM and JST-SH cables, STEMMA QT and Qwiic leads, Micro-Fit housings, ribbon cable and stepper motor cables, with u.FL-to-SMA pigtails and LoRa antennas for radio modules.

On the USB side there are USB-C breakout boards, PD trigger boards and cables that ask a USB-C charger for 9, 12 or 20 V, a fast-charging module, a 27 W USB-C supply for the Raspberry Pi 5, a micro HDMI cable, SATA-to-USB adapters, and Cat5e Ethernet cables with RJ45 pass-through plugs. Heat shrink tubing, ring lugs and silicone wire finish the joints. Match each connector's current rating and wire gauge to the load before you crimp or solder it.

61 listings today, from $1.93; half cost $9.88 or less.

What to look for

Check both ends and what the cable has to carry. Some USB cables only charge, and programming a board needs one that carries data. For HDMI, match the connector (standard, mini or micro, as on the Raspberry Pi 4 and 5) and the resolution you need. For networks, Cat5e handles gigabit Ethernet.

Specs that matter

USB-C cables are rated by current: a 3 A cable suits most devices, and carrying 5 A needs an electronically marked cable. For wire, the gauge (AWG) sets how much current it can carry, and a smaller number means a thicker wire. Silicone insulation stays flexible and tolerates soldering heat; PVC is stiffer.

Compatibility tips

Use solid-core wire on breadboards and stranded wire anywhere it flexes, such as inside a robot. Match crimp terminals to both the wire gauge and the crimping tool. For hubs and adapters, check the USB version: a USB 2.0 hub will slow a USB 3 drive down.

Questions about cables, connectors and USB power

What does a USB-C PD trigger board do?
It asks a USB-C Power Delivery charger for a fixed voltage, such as 9, 12 or 20 V, and passes it to your project. The charger has to offer that voltage and enough current for the load, so check its rating.
Which battery connector should I use?
Choose by the current it has to carry and by what your batteries and chargers already use. XT30 suits small packs, XT60 is common on drones and robots, and XT90 and SB50 Anderson-style connectors take larger currents. Using one connector across all your packs lets them swap freely.
What is a STEMMA QT or Qwiic cable?
A 4-pin JST-SH cable with a 1.0 mm pitch that carries I2C power and data between boards and sensors that have STEMMA QT or Qwiic connectors, so they connect without soldering.
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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