> For the complete documentation index, see [llms.txt](https://docs.proxyshard.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.proxyshard.com/eng/site-navigation/buying-and-renewing/buying-residential-proxies.md).

# Residential proxy purchase example

## Purchasing proxies

Since <mark style="color:purple;">Residential</mark> proxies are billed in gigabytes, you need to specify the amount of traffic to purchase, as well as a promo code if available

{% hint style="info" %}
Unused traffic does not expire at the end of the month. It remains on the order until it is fully used.
{% endhint %}

<figure><img src="/files/XOmAjHnZr3VDx4aH3ndV" alt="" width="537"><figcaption></figcaption></figure>

After purchase, the proxy setup and generation panel becomes available

<figure><img src="/files/rDX7LDwhlbkPwcliV0Ec" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
The order parameter field descriptions are available [here](/eng/our-products/residential-proxies.md#settings-field-description)
{% endhint %}

## Adding traffic to an order

Traffic can be added using the ![](/files/IekTpWp55h7fRieljsZi) button in the right corner of the order

<figure><img src="/files/CLsvA4BfeJ6jWCrxgJwG" alt="" width="563"><figcaption></figcaption></figure>

After purchasing additional traffic, the proxies will start working again


---

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