**Introduction to Ethereum** Ethereum is a decentralized blockchain platform that enables developers to build and deploy smart contracts and decentralized applications (dApps). The native cryptocurrency of the Ethereum network is called Ether, abbreviated as ETH. It can be traded on various cryptocurrency exchanges against other digital assets and even fiat currencies. Additionally, Ether serves as the fuel for the Ethereum network, used to pay for transaction fees and computational services. Due to its popularity, the price of Ethereum can fluctuate rapidly. For example, during the infamous DAO hack in 2016, the value of ETH dropped from around $21.50 to $15 against the US dollar. In April 2016, Vitalik Buterin, the co-founder of Ethereum, sold a quarter of his ETH holdings, which sparked some debate among the community. He explained that it was a calculated move for portfolio diversification, referencing former Bitcoin developer Gavin Andresen’s view that "everything is just an experiment, and there's still a chance of failure."  **Ethereum Price Trend**  **Currency Exchange** 1 Ethereum = 1905.00 RMB **Ether Coin Mining Machine Assembly and Configuration** As we know, traditional mining hardware like Bitcoin or Litecoin rigs are not suitable for Ethereum. Instead, specialized equipment is required. Currently, Ethereum and Zcash are among the most popular coins that can be mined using GPU-based systems. Below is a recommended hardware configuration for Ethereum mining in 2017:  The hardware requirements for an Ethereum mining rig are relatively modest in terms of CPU, memory, and storage. However, the motherboard must have at least 5 PCI-E slots to accommodate multiple graphics cards. A typical setup includes 6 high-performance GPUs connected via PCIe slots. The power supply should be at least 1250W to support all the graphics cards. The most important component is the GPU—GTX 1060, GTX 1070, and GTX 1080 are popular choices, along with AMD RX 570 and RX 580. The better the GPU performance, the higher the hash rate and potential earnings. Proper cooling is also essential; it's recommended to use fans or additional case fans to manage heat efficiently. **Note:** Recently, the prices of mining hardware, especially video cards, have been rising sharply. Availability has become limited, and it's difficult to find certain models in stock. Prices vary depending on the brand and model. **Ethereum Mining Machine Assembly Considerations** To build an efficient Ethereum mining rig, you need a powerful GPU and sufficient system memory. The mining process involves complex calculations, which require significant energy. The higher the configuration of your mining machine, the more Ethereum you can mine, leading to higher profits. When assembling an Ethereum miner, two key factors to consider are: 1. The number of PCIe slots on your motherboard determines how many graphics cards you can connect. More slots mean more GPUs, which increases your mining power. 2. The power supply unit (PSU) must be strong enough to handle the total power consumption of all the GPUs. Choosing the right PSU based on the number and power of your graphics cards is crucial. Otherwise, you may end up with underpowered GPUs or even system instability. In summary, if you're looking to start mining Ethereum, it's best to purchase a dedicated mining rig from a professional website. Focus on selecting a high-quality GPU and CPU, as these are the main factors affecting the efficiency and profitability of your mining operation. Understanding these details before starting will help you make informed decisions and optimize your mining experience.

Eyeglass Frames

Eyeglass frames are an important part of eyewear, mainly supporting the lenses and providing an aesthetic effect. The materials used are mainly metal, plastic or resin, natural materials and so on. A fine eyeglass frame should be made of a stable, safe, reliable and skin-friendly material that is light, strong and does not deform.
We custom etching eyeglass frames with drawings provided by customers. The raw material we more use for spectacle frame is stainless steel. The thickness we can achieve is 0.03-1.0mm. We are equipped with professional metal etching equipment and exposure development equipment. Our customized metal eyeglass frames can achieve burr-free finishes, no notch.

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