HKD 40-pin Ribbon Jumper Cable 40W MF 15cm - IOT Cables for Prototyping

Product overview

This 40-pin ribbon jumper cable (40W MF 15cm) is widely used in maker and education settings where multiple signal lines must be routed in parallel. The flat ribbon format keeps conductors organised and colour-coded edge marking helps preserve pin orientation when connecting to 2.54 mm pitch headers commonly found on Arduino, Raspberry Pi HATs, and many dev boards.

Typical uses

• Connecting GPIO rows from a Raspberry Pi to a breakout or HAT
• Linking sensor arrays, I2C buses and SPI lines to breadboards
• Temporary wiring during prototyping and classroom labs

Key specification callouts

Communica stocks similar ribbon and jumper ranges suitable for education and engineering use. For bulk classroom packs or procurement orders, check stock availability and request a quote for volume pricing and VAT invoicing. For guidance on choosing the right cable, see our guide to selecting jumper cables for electronics.

Compatibility & practical guidance

The keyword iot-cables-hkd-ribbon-jumper-40w-mf-15cm indicates a common form factor for I/O wiring. It is compatible with 2.54 mm pitch header rows and IDC sockets. Use it where parallel signal routing is required; it is not intended for carrying high motor currents or mains voltages. For power connections, prefer separate power leads sized to the current requirements.

Connector and pin mapping example (ASCII)

Female side (to breadboard or IDC socket):
[1][2][3]...[38][39][40]

Male side (to header):
|o o o ... o o o|  (pins 1..40 in same order)

Note: Pin 1 is typically at the coloured stripe edge. Always confirm orientation with your board's silkscreen or datasheet.

Choosing the right ribbon jumper for your project

• Length: 15 cm is ideal for nearby headers and breadboards; choose longer cables for larger enclosures.
• Gender: MF (male-female) is useful for bridging from a female IDC socket to a male header; MF vs FF vs MM matters for your target connectors.
• Conductor count: match the number of signals you need. For partial connections use keyed connectors or cut and re-terminate as needed.
• Signal type: for I2C/SPI/UART, keep wiring short to reduce noise; add pull-ups or series resistors where indicated by device datasheets.

Stock, local pickup and procurement notes (South Africa)

Availability and lead times can vary. Communica's Samrand head office usually lists current stock for common jumper and ribbon ranges; check branch pages to confirm collection from Samrand, Pretoria CBD or Cape Town. For education or institutional purchases, request a formal quote and VAT invoice. Prices shown online are indicative; bulk orders may qualify for different terms - request a quote to confirm ZAR totals and estimated delivery.

Accessories and complementary items

• IDC socket housings and crimp tools for creating custom ribbon terminations
• Breakout PCBs for converting a 40-pin ribbon to individual screw terminals or jumpers
• Heatshrink, ferrules and cable ties for strain relief and tidy assemblies

Compare specs & order options

When comparing iot-cables-hkd-ribbon-jumper-40w-mf-15cm options, confirm conductor gauge, insulation material and connector plating. Use the "Compare Specs" action to ensure pin pitch and gender match your boards. For campus labs or repeated class use, consider ordering spare cables and breakout adapters to reduce setup time.

Sources

• Communica - Wire & Cable collection
• Raspberry Pi - GPIO usage and pinout
• Adafruit Learning System - Prototyping guides