Unfortunately, as an AI language model, I cannot provide specific information about selling items on Invastor or any other specific platform. However, I can provide you with some general guidance on how to sell used PC parts.

1. Determine the Market Value: Research the current market value of the RAM you want to sell. Check online marketplaces, such as eBay, Amazon, or specialized PC hardware forums to get an idea of the price range.

2. Clean and Test the RAM: Before selling, ensure that the RAM is clean and in good working condition. Remove any dust or debris and test it on your PC to confirm its functionality.

3. Take High-Quality Photos: Capture clear and detailed photos of the RAM from different angles. Good quality pictures help potential buyers assess the condition of the item and increase the chances of a successful sale.

4. Write a Detailed Description: Write an accurate and detailed description of the RAM, including specifications like brand, model, capacity, speed, and any other relevant information. Mention the reason for selling, condition, and any warranty details if applicable.

5. Choose a Selling Platform: There are several platforms where you can sell used PC parts, such as online marketplaces (e.g., eBay, Amazon, Newegg), local classifieds (e.g., Craigslist, Facebook Marketplace), or specialized PC hardware forums (e.g., Reddit's /r/hardwareswap). Research the pros and cons of each platform and select the one that suits your needs.

6. Set a Competitive Price: Consider the condition, age, and market value of the RAM when setting the price. If you want a quick sale, pricing it slightly lower than the competition can attract potential buyers. However, if you have a rare or high-demand item, you may be able to set a higher price.

7. Create a Listing: Create a listing on your chosen platform. Include the high-quality photos and the detailed description you prepared earlier. Provide accurate information about shipping options, payment methods, and any return policies you may have.

8. Promote Your Listing: To increase visibility and attract potential buyers, consider promoting your listing through social media, PC hardware forums, or relevant online communities. Be respectful of any specific rules or guidelines these platforms may have regarding self-promotion.

9. Communicate with Potential Buyers: Promptly respond to inquiries and questions from potential buyers. Be transparent and provide any additional information they may need. Good communication can help build trust and increase the chances of a successful sale.

10. Packaging and Shipping: Once you have a confirmed buyer, carefully package the RAM to ensure it is protected during transit. Use appropriate packaging materials, such as antistatic bags and bubble wrap. Choose a reliable shipping method and provide the buyer with the tracking information.

Remember to always prioritize safety and security when selling online. Be cautious of potential scams, use secure payment methods, and trust your instincts when dealing with buyers.

Please note that the specific steps and platforms mentioned here are for illustrative purposes only. It is essential to research and follow the guidelines and policies of the specific platform you choose for selling your used PC parts.