Why choosing the right computer connector matters
A connector is more than a plug - it defines signal integrity, power delivery, mechanical life and serviceability. For South African makers, students and workshop technicians, selecting the correct connector reduces troubleshooting, short lead-time rework and costly downtime in prototype-to-production builds. Communica stocks an extensive range of board-level, panel, data and power connectors so you can pick components suited to your exact application and local delivery needs.
Fast local availability and branch collection
We keep common SATA, USB, RJ45, Molex KK, JST, PCIe power and barrel jack families in local warehouses with branch pickup from Samrand, Pretoria CBD and Cape Town. Check stock and plan collections or quotes to meet project deadlines - branches & trading hours are available for planning here.
Connector families you’ll frequently use
- USB (A, B, C) - data and power; choose shielded variants for higher speeds and board-grounding.
- RJ45 (Ethernet) - consider shielded vs unshielded and PoE-rated pairs for networked devices.
- SATA & PCIe power - use keyed housings to avoid mismatches and check current ratings per pin.
- Header pins, JST and Molex KK - ideal for internal wiring and prototyping; choose pitch to match PCB footprints.
Specification callouts to prioritise
When comparing parts, evaluate current rating (A), mating cycles, pitch (mm), contact plating (e.g., gold flash), and environmental resistance. Use our collections to filter by category and brand when you need a quick comparison - browse connector categories here or view all connector SKUs on the site here.
Connector spec comparison at a glance
| Type | Typical Current | Pitch / Size | Common Use |
|---|---|---|---|
| USB-C Receptacle | 3-5 A (standard) | Receptacle small | Modern laptops, phone charging, peripherals |
| RJ45 (8P8C) | 1 A per contact (PoE up to 30W+ depends on spec) | Modular | Ethernet networks, PoE devices |
| Molex KK 2.54mm | 1-3 A | 2.54 mm | Internal wiring, hobbyist boards |
| Barrel Jack (DC) | 1-5 A | 2.1 / 2.5 mm ID common | External power supplies |
If you need brand-specific parts, visit our shop-by-brand page to compare makers and footprints here. While browsing, note lead times on product pages - popular maker items move quickly and can be reserved via quote requests.
