Netcup was founded in 2008 and is a well-established hosting service provider in Germany with its own data centers. They offer a wide range of services including VPS, dedicated servers, shared hosting, and domain registration. Their prices are affordable and their machines have good performance.

To register a Netcup account, you need to order a product first. Once your account is approved, you will receive the login address, username, and password in your email.

Netcup provides coupons for new users. You can redeem these coupons at https://www.netcup.de/bestellen/gutschein_einloesen.php. Here are 10 coupons worth 5 euros each.

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To open or reinstall a VPS, you can order a suitable package and wait for the approval from customer service. Once approved, you will receive the login address, IP, and password. You can manage your VPS through the server control panel at https://www.servercontrolpanel.de/. From there, you can reinstall the operating system by selecting the desired option in the Media - Images section.

Netcup imposes a monthly traffic limit of 40TB on their VPS. If you exceed this limit, your speed will be restricted.

For technical support, Netcup offers phone, forum, and email support. Email support is recommended, and you can submit your questions through the form at https://www.netcup.eu/kontakt/.

Regarding performance, the average I/O speed is 1284.7 MB/s, and the highest download speed is 110MB/s. The ping test shows an average latency of 250ms for Sichuan Telecom.

Please note that Netcup bills include an additional 19% value-added tax. While it is possible to apply for exemption, it seems to be only available for corporate accounts. Make sure to cancel the service at least 30 days in advance if you decide to stop using Netcup, as unpaid bills may result in legal action.

Overall, Netcup provides stable and reliable VPS services with good hardware and performance. The network speed may vary during peak hours, but it is generally satisfactory for European VPS.