# Product Limits

## Supported Regions

| Region      | RSSD Cloud Disk | SSD Cloud Disk | Ordinary Cloud Disk |
| ------- | ------- | ------ | ----- |
| North China Zone B | Supported     | Supported     | Supported    |
| North China Zone C | Supported     | Supported     | Supported    |
| North China Zone D | Not Supported     | Supported     | Supported    |
| North China Zone E | Supported     | Supported     | Supported    |
| Ulanqab Zone A | Supported     | Supported     | Not Supported    |
| Shanghai Zone A | Not Supported     | Supported    | Supported    |
| Shanghai Zone A | Supported     | Supported    | Supported    |
| Shanghai Zone B | Not Supported     | Supported     | Supported    |
| Shanghai Zone C | Not Supported     | Supported     | Supported    |
| Guangzhou Zone B  | Supported     | Supported     | Supported    |
| Hong Kong Zone A  | Not Supported     | Supported    | Supported    |
| Hong Kong Zone B  | Supported     | Supported     | Supported    |
| Washington Zone A | Not Supported     | Supported     | Supported    |
| Singapore Zone A | Not Supported     | Supported     | Supported    |
| Singapore Zone B | Supported     | Supported     | Not Supported    |
| Taipei Zone A  | Supported     | Supported     | Supported    |
| Jakarta Zone A | Supported     | Supported     | Supported    |
| Seoul Zone A  | Supported     | Supported     | Supported    |
| Los Angeles Zone A | Supported     | Supported     | Supported    |
| Ho Chi Minh Zone A | Supported     | Supported     | Supported    |
| Tokyo Zone A  | Supported     | Supported     | Not Supported   |
| Frankfurt Zone A  | Not Supported     | Supported     | Not Supported   |
| Bangkok Zone B  | Supported     | Supported     | Not Supported   |
| Mumbai Zone A  | Not Supported     | Supported     | Not Supported   |
| Lagos Zone A  | Supported     | Supported     | Not Supported   |
| Manila Zone A  | Supported     | Not Supported     | Not Supported   |
| UK London Zone A  | Supported     | Supported     | Not Supported   |

Note: 

1. SSD Cloud Disks support a maximum capacity of 8T, Regular Cloud Disks support a maximum capacity of 8T, RSSD Cloud Disks support a maximum capacity of 32T, and ESSD Cloud Disks support a maximum capacity of 8T.
2. ESSD Cloud Disks are currently only available in the overseas Ho Chi Minh City availability zone and are in the public beta stage.


## Single Account Quota

1000 blocks

## Limits on Mounting Cloud Disks on a Single Cloud Host

A single cloud host can mount up to 26 cloud disks.