# Elastic Compute Billing

## Prerequisites

* Please first see [**General Pricing Rules**](https://docs.console.zenlayer.com/welcome/pricing/general-pricing-rules) and [**General Lifecycle Rules**](https://docs.console.zenlayer.com/welcome/pricing/general-lifecycle-rules) to know about basic pricing ways of [**subscription**](https://docs.console.zenlayer.com/welcome/pricing/general-pricing-rules/subscription) and [**pay-as-you-go**](https://docs.console.zenlayer.com/welcome/pricing/general-pricing-rules/pay-as-you-go) resources.

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

* <mark style="color:blue;">Currently only pricing model of pay-as-you-go is supported for elastic compute resources.</mark>

* <mark style="color:blue;">A one-hour amount will be "frozen" temporarily as a</mark> [<mark style="color:purple;">**Temporary Hold**</mark>](https://docs.console.zenlayer.com/welcome/general-pricing-rules/pay-as-you-go#temporary-hold) <mark style="color:blue;">in the pay-as-you-go pricing.</mark>

* <mark style="color:blue;">You can manually delete your pay-as-you-go elastic compute resources at any time. The deleted resources will be released immediately and your Temporary Hold will be unfrozen and returned. See</mark> <mark style="color:blue;"></mark><mark style="color:blue;">**Resource recycle**</mark> <mark style="color:blue;"></mark><mark style="color:blue;">in the</mark> [<mark style="color:purple;">**Pay-as-you-go Stages**</mark>](https://docs.console.zenlayer.com/welcome/pricing/general-lifecycle-rules/pay-as-you-go-stages)<mark style="color:blue;">.</mark>
  {% endhint %}

* Elastic compute resources include the compute resources (vCPUs and RAM), disks, images, IPs, bandwidth, data transfer, networks, subnets and security groups.

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

<mark style="color:blue;">The actual price varies in different locations and availability zones, therefore the price shown on the order page shall prevail.</mark>
{% endhint %}

## Billing Items

### Elastic Compute Instance

The billing method of elastic compute instances is [**Pay-as-you-go**](https://docs.console.zenlayer.com/welcome/pricing/general-pricing-rules/pay-as-you-go). You pay for your resources afterward by hour.

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

<mark style="color:blue;">You can purchase up to 40 pay-as-you-go elastic compute instances.</mark>
{% endhint %}

#### v**CPU and Memory**

You can select the available [specifications of vCPU and memory](https://docs.console.zenlayer.com/welcome/elastic-compute/instance-specification).

The price varies with different specifications and locations and you will see the price when placing the order on zenConsole.

### **Storage**

#### **Boot Disk**

Boot disk is used to store your operating system. The disk size cannot be smaller than that of your operating system. The price varies according to the storage volume and the location of the instance. You pay for boot disk by per GB along with the vCPU and memory.&#x20;

#### **Disk**

Disk is optional for you to provide extra storage to your business data. The price varies according to the storage volume and the location of the instance. You can pay for the disk by per GB along with the vCPU and memory, or attach and pay for the disk afterward by hour.

### Elastic IPv4

You postpay the elastic IPv4 by hour.

The price varies with different specifications and locations and you will see the price when placing the order on zenConsole.

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

<mark style="color:blue;">When purchasing an instance, you can optionally select to create a free default public IPv4 address.</mark>
{% endhint %}

### CIDR Block IPv4

You postpay the CIDR Block IPv4 by the hour. All public CIDR IPv4 addresses within the range are usable.

### Cross-region Bandwidth

You need to purchase Cross-region Bandwidth for internal connection. You postpay the Cross-region Bandwidth based-on flat rate by the hour.&#x20;

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

<mark style="color:blue;">By default, in a global VPC, 10 Kbps free bandwidth is available for testing between regions.</mark>&#x20;
{% endhint %}

### Load Balancer

A Load Balancer distributes incoming traffic across multiple servers or backend resources based on predefined rules, ensuring high availability of applications. The load balancing resources are mainly charged on a pay-as-you-go hourly basis. View [Load Balancer Billing](https://docs.console.zenlayer.com/welcome/pricing/elastic-compute-billing/load-balancer-billing) for more details.

### Network

#### Bandwidth Cluster

You can uniformly manage all your compute resources and optimize public network bandwidth costs by sharing a bandwidth commitment with the aggregated pricing model.

#### Flat Rate

For the flat rate pricing model, you can set a bandwidth cap for your stable business with little bursty traffic, and use unlimited data transfer. You will be charged based on the per Mbps bandwidth size by the hour.

#### Data Transfer

You can purchase a monthly data transfer package.

The package is evenly distributed across each hour of the month, which is your hourly package commit rate. You use that part first and pay afterward by hour. If your hourly usage does not exceed the hourly commit rate, you are charged for the hourly commit rate only. If your usage exceeds the hourly commit rate, apart from the hourly commit rate fee, the overage usage will be paid per GB. Less than 1 GB is counted as 1 GB.

If you wish to pay for your actual hourly usage only, you can purchase a 0 TB monthly data transfer package.