# Kabelmeister Jumper Wire 40-Pin separable leads set for Arduino Raspberry Pi, 3-piece (BU-BU/ST-BU/ST)

**URL:** https://aio.lv/en/product--kabelmeister-jw40-040-set--6378467
**Data updated:** 2026-04-16 13:22 (EEST)
**Category:** Internal PC Cables
**Manufacturer:** Kabelmeister
**Manufacturer code:** JW40-040-SET
**EAN:** 4066857002075
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kabelmeister-jw40-040-set--6378467

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Kabelmeister Jumper Wire 40-Pin separable leads set (JW40-040-SET) provides 40-pin jumper connections for prototyping with Arduino, Raspberry Pi and other single-board computers. Supplied as a 3-piece set with BU-BU and ST-BU/ST configurations, these detachable wires allow flexible routing, easy pin-to-pin connections and quick reconfiguration of GPIO, breadboard and sensor interfaces.

## Long description

Kabelmeister Jumper Wire 40-Pin separable leads set for Arduino Raspberry Pi, 3-piece (BU-BU/ST-BU/ST) provides a flexible collection of detachable jumper cables designed for prototyping and wiring tasks with Arduino, Raspberry Pi and other single-board computers. The set contains three separable 40-pin leads that can be used to connect GPIO pins, breadboards, sensors and modules, enabling quick reconfiguration and tidy routing of signal and power lines during development and testing.
Advantages
The 40-pin separable design permits custom cable lengths and selective pin connections without soldering, making it easier to manage multi-pin headers and complex wiring. Supplied in both bus-to-bus and single-to-bus configurations, the set supports direct header-to-header connections as well as individual pin access via female or male housings. Materials and connectors are chosen for reliable contact and repeated reconfiguration during prototyping cycles.
Suitable for
 Connecting GPIO headers on Arduino and Raspberry Pi boards
 Wiring between breadboards and sensor or actuator modules
 Creating temporary multi-pin harnesses for development and testing
 Prototyping and educational electronics projects requiring frequent reconfiguration
When it may not be suitable
This jumper set is intended for prototyping and temporary connections rather than permanent or high-vibration installations. For long-term industrial deployments, shielded cabling or soldered, fixed harnesses may provide better mechanical stability and environmental protection. The connectors are designed for typical low-voltage digital and analogue signals; they are not rated for mains voltages or high-current power delivery.
Key specifications
 Configuration: 3-piece set of separable 40-pin leads with mixed connector orientations
 Connector types: combinations of male and female housings for bus-to-bus and single-to-bus use
 Length: approximately 40 cm per lead
 Intended signals: low-voltage digital and analogue GPIO, I2C, SPI, UART, power lines for SBCs and modules
 Use case: prototyping, breadboard and header connections, sensor and module wiring
How to use
Separate the 40-pin leads to the required number of pins or use them as full 40-pin ribbons to connect board-to-board headers. Align the housings with the target header orientation, press gently until the connector seats, and verify correct pin mapping before applying power. For individual connections, detach the required pins from the ribbon and attach them to the intended headers or components. Store the leads flat or coiled to avoid kinks and inspect contacts for debris prior to use.
What to consider before purchase
 Check compatibility of pin spacing and header gender with your Arduino, Raspberry Pi or other boards
 Confirm required lead length and whether 40 cm per lead suits your layout
 Evaluate whether separable ribbon cables meet your mechanical stability needs for the project
Usage recommendations
Use the set for temporary wiring, rapid prototyping and educational projects. Label or colour-code individual pins when working with multiple signals, and avoid using these leads for mains or high-current connections. For improved reliability, minimize stress on connector joints and secure bulky modules to prevent accidental disconnection.

## FAQ

### How much does the Kabelmeister Jumper Wire 40-Pin set JW40-040-SET cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Kabelmeister products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Kabelmeister service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/6378467/47813474_large.webp