CH340E USB to TTL
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CH340E USB to TTL
The CH340E USB to TTL is a converter module used to transform a USB interface into a serial TTL signal. It features the CH340E chip, known for its compact design and stable communication performance, making it ideal for embedded development, microcontroller programming, and debugging. The module supports multiple baud rates and is compatible with both 3.3V and 5V operating voltages, making it suitable for various development platforms, such as Arduino and Raspberry Pi.
Key features of the CH340E module include built-in USB driver support for multiple operating systems (including Windows, Linux, and Mac OS) and no need for an external crystal oscillator, which simplifies circuit design. Additionally, the module provides standard serial pins (TXD, RXD, GND, VCC) for easy connection and debugging. Its small size makes it perfect for space-constrained applications.
Product Features
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New CH340 Chip: Ensures compatibility across different drivers and computers, avoiding issues that may arise from incompatibility.
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Indicator Lights: In addition to the power light (PWR), there are TXD and RXD indicator lights, with reserved positions for RTS and CTS. This makes it easy to visually confirm the device's operation without the need for additional equipment.
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Wide OS Support: Compatible with a variety of Windows versions, including Windows 98/ME/2000/XP/Server 2003/Vista/Server 2008/Win7/Win8, both 32-bit and 64-bit.
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Voltage Selection: Supports both 3.3V and 5V, selectable via a jumper.
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Compact Size: Features an ultra-small form factor, making it easy to integrate into various projects.
Effective Date: March 27, 2025
At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 60 days of the shipment date.
1. Warranty Disclaimer
Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.
2. Warranty Policy
Warranty Period
The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.
Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.
If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.
After the warranty period, support may still be available at a reasonable fee.
Warranty Exclusions
The warranty does not apply in the following cases:
- The product is beyond the 12-month warranty period.
- Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
- Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
- Unauthorized repair attempts by the customer.
- The product is not defective but has been opened and is non-returnable by policy.
3. Returns & Refunds
If you're not satisfied with your purchase, you may be eligible for a return or exchange:
- Return for Refund: Within 15 days of receipt (unopened).
- Return for Replacement: Within 30 days of receipt (damaged or defective).
- Exchange Window: Up to 30 days from receipt.
Please email us at info@openelab.io for a return authorization before sending anything back.
Return Conditions
- Items must be in original, clean, and mint condition with packaging intact.
- Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
- Include the receipt, a brief note with your name, order number, and reason for return.
Shipping & Fees
- Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
- Refunds may be subject to additional shipping fees unless the return is due to our error.
- A flat €8 shipping fee will be deducted for returned items that originally qualified for free shipping.
Payment Platform Fees
For refunds processed through third-party platforms such as PayPal or Braintree, a standard 3.5% service fee may be deducted to cover payment processing costs.
