139PCS 40 Pin 1x40 Single Row Male and Female 2.54 Breakable Pin Header + Jumper Cap + KF301 Straight Pin 2P 3P for PCB Board

$9.41

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Description


【Stable Connection and Rapid Prototype Assembly】


This kit offers 40-pin single-row male and female connectors as well as right-angle male connectors, with a standard 2.54mm pitch. This ensures stable and reliable board-to-board expansion connections. Combined with multi-color jumper caps, it enables quick connection, testing, and adjustment of circuits without the need for soldering, significantly enhancing the efficiency of prototype production. 


【High-load Safety Connection Design】

It includes 5.08mm pitch screw terminals (model: 301-2P/301-3P), capable of supporting 300V/16A high-load. The push-button wiring is more secure. It is specially designed for safe connection of power lines and high-power equipment to avoid potential safety hazards caused by poor contact or overheating. 


【Multicolor jumper caps, circuit identification is clear at a glance】

Compared to ordinary single-color jumpers, this set provides six-color jumper caps in black, white, yellow, blue, green, and red. The outer layer is made of insulating plastic while the inner layer is made of high-quality conductive material. This not only ensures safety and reliability but also makes it easier to divide circuits and identify signals, avoiding confusion during debugging and improving experimental efficiency. 


【High-quality Materials and Complete Configurations】

The connectors and jumper caps are made of environmentally friendly insulating materials, and the terminal blocks comply with flame retardant standards. The kit includes: 3 pieces of 40-pin male/female/angled male connectors each, 5 screws with 301-2P/301-3P terminals each, and 20 pieces of six-color jumper caps each, meeting various circuit assembly requirements. 


【Widely applicable scenarios and users】

Suitable for electronic prototype production, Arduino project development, STEM education, robot module construction, electronic maintenance and debugging, etc. Whether you are an electronic enthusiast, a DIY lover, or a hardware engineer, you can use this electronic component kit to quickly complete circuit experiments and prototype verification. 

1.Connector components (each 3 pieces) 
Type:
40-pin single-row male connector
40-pin single-row right-angle male connector
40-pin single-row female connector
Spacing: 2.54mm standard spacing

Purpose: To provide stable board-to-board expansion and connection capabilities for development boards 


2. Screw terminals (5 each) 
Model: 5.08mm spacing 301-2P/301-3P terminals
Performance: 300V/16A high-load capacity, press-type wiring for a more secure connection

Application: Specifically designed for safe connection of power lines and high-power equipment 


3. Jumping line caps (20 each) 
Color: Black, White, Yellow, Blue, Green, Red
Structure: Outer layer is insulating plastic, inner layer is conductive material

Function: Used for quickly connecting or disconnecting circuits, it is an essential tool for digital circuit setup 

Q1: Is this electronic component kit suitable for beginners in electronic prototyping?
A: Absolutely. This kit is specifically designed for beginners in electronic prototyping. It includes various common connectors and jumper caps, allowing you to quickly assemble circuits without the need for soldering. It is an ideal choice for learning circuit basics and developing compatible prototypes for Arduino projects.


Payment Policy

Payment Policy – BILLIONS BIRDS

At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.

1. Accepted Payment Methods

We accept the following payment options:

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6. Fraud Prevention

BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.


Delivery Policy

Delivery Policy – BILLIONS BIRDS

At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.

1. Order Processing

All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.

2. Shipping Times

Estimated delivery times vary depending on your location:

Domestic Shipping: 3–7 business days

International Shipping: 7–15 business days

Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.

3. Shipping Costs

Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.

4. Tracking Information

Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.

5. Delivery Issues

If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.

6. Incorrect Shipping Information

Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.


Refund Policy

Refund Policy – BILLIONS BIRDS

At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.

1. Return Eligibility

You may request a return within 14 days of receiving your order. To qualify for a return:

The item must be unused, unworn, and in the same condition as received.

The item must be in its original packaging.

Proof of purchase (order confirmation or receipt) is required.

Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.

2. Non-Refundable Items

The following items are non-refundable:

Final sale or discounted items

Gift cards

Items damaged due to misuse, negligence, or improper care

3. Return Process

To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.

Unless the item is defective or incorrect, customers are responsible for return shipping costs.

4. Refund Processing

Once we receive and inspect your returned item:

We will notify you of the approval or rejection of your refund.

If approved, the refund will be issued to your original payment method within 5–10 business days.

Please note that banks or payment providers may require additional time to process refunds.

5. Damaged or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.

6. Late or Missing Refunds

If you have not received your refund:

Check your bank account again.

Contact your credit card company or payment provider.

If the issue persists, don't hesitate to contact our support team for assistance.

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