> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sinosend.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Asia-Pacific Edge Delivery for Fast File Transfers

> Sinosend's APAC edge nodes in Hong Kong, Shanghai, and Dubai deliver files with near-zero latency to China, India, and the Middle East.

Sinosend operates a dedicated Asia-Pacific edge network so your files reach partners in China, Southeast Asia, India, and the Middle East at full speed — without bouncing across the Atlantic. Instead of routing every transfer through a US or European data center, Sinosend stores and serves your files from the edge node closest to your recipient the moment they click the download link.

## What APAC edge delivery is

A standard CDN might cache files globally, but the origin server and storage often sit in one region. When a recipient in Hong Kong downloads a file stored in Virginia, that request crosses the Pacific, retrieves the file, and sends it back — adding hundreds of milliseconds of latency per chunk.

Sinosend's APAC edge works differently. When you select an APAC data region, your files are written directly to that edge node at upload time. Downloads are served from storage that is physically and topologically close to your recipient. There are no trans-Pacific or trans-Atlantic round trips.

<Note>
  APAC edge delivery is automatically applied when you select an APAC data region (Hong Kong, Shanghai, or Dubai). You do not need to configure anything separately.
</Note>

## Edge node locations

<CardGroup cols={2}>
  <Card title="Hong Kong" icon="building">
    Primary gateway for greater China and Southeast Asia. Provides fast access into Mainland China by sitting outside the Great Firewall while remaining geographically close to major Chinese cities.
  </Card>

  <Card title="Shanghai" icon="city">
    Mainland China node for partners who need files stored entirely within the People's Republic of China. Ideal for compliance-driven use cases and maximum in-country download speed.
  </Card>

  <Card title="Dubai" icon="sun">
    Serves the UAE and broader Middle East region. Eliminates the long-haul routing that typically slows file transfers to Gulf-based partners and logistics hubs.
  </Card>

  <Card title="India" icon="flag">
    India-specific infrastructure ensures fast, reliable delivery to the Indian market without routing through Singapore or Hong Kong intermediaries — serving one of the fastest-growing global trade economies.
  </Card>
</CardGroup>

## How APAC routing works

When a recipient in your selected region opens your transfer link, Sinosend resolves their request to the nearest edge node rather than a central origin:

1. **Upload** — you upload your files and select an APAC data region (Hong Kong or Shanghai).
2. **Storage** — files are written to that edge node immediately. Nothing is stored in the US or Europe for that transfer.
3. **Delivery** — when your recipient clicks the link, their download is served directly from the edge node. Data never leaves the region.
4. **Speed** — typical latency from APAC edge to an in-region recipient is measured in single-digit milliseconds, compared to 150–300 ms for trans-Pacific routes.

<Tip>
  Zero-latency routing means your files stay in-region end to end. A file stored in Hong Kong is never fetched from a US server to be delivered to a recipient in Shenzhen.
</Tip>

## Alibaba Cloud infrastructure

Sinosend's APAC edge is built on Alibaba Cloud, the dominant cloud provider in China and one of the largest in Asia. This matters for two reasons:

* **Connectivity** — Alibaba Cloud has deep peering relationships with Chinese ISPs (China Telecom, China Unicom, China Mobile), which means lower latency and fewer dropped connections for recipients in Mainland China.
* **Reliability** — Alibaba Cloud's APAC network carries a **99.99% uptime SLA**, translating to less than 53 minutes of downtime per year.

For recipients using standard cloud services like Dropbox or WeTransfer, files are often served from AWS US-East or similar, with no peering advantage inside China. Sinosend's infrastructure eliminates that bottleneck at the network layer.

## 99.99% uptime in APAC

Sinosend guarantees 99.99% uptime for its APAC edge network. If you are sending time-sensitive trade documents — purchase orders, shipping manifests, inspection approvals — your recipients can rely on the download link being available when they need it.

<Note>
  The 99.99% uptime SLA applies specifically to the APAC edge network (Hong Kong, Shanghai, and Dubai nodes). See your plan's Service Level Agreement for full details.
</Note>

## Selecting an APAC edge region for your transfer

<Steps>
  <Step title="Start a new transfer">
    Click **New Transfer** from your Sinosend dashboard.
  </Step>

  <Step title="Add your files">
    Upload the files you want to send, or drag them into the upload area.
  </Step>

  <Step title="Open Transfer Settings">
    Click **Settings** (or the gear icon) to expand the transfer configuration panel.
  </Step>

  <Step title="Choose your data region">
    Under **Data Region**, open the dropdown and select the region that matches your recipient's location: **APAC — Hong Kong** for greater China and Southeast Asia, **Mainland China (Shanghai)** for mainland-specific compliance, or **UAE & Middle East** for Gulf-region recipients.
  </Step>

  <Step title="Send">
    Complete the rest of your transfer details and click **Send**. Your files are immediately written to the selected edge node.
  </Step>
</Steps>

<Warning>
  You cannot change the data region after a transfer has been sent. Choose your region before clicking Send.
</Warning>

## Choosing between Hong Kong and Shanghai

| Scenario                                                | Recommended node          |
| ------------------------------------------------------- | ------------------------- |
| Sending to a supplier in Guangdong or Shenzhen          | APAC — Hong Kong          |
| Sending to a partner in Shanghai or Beijing             | Either (HK or Shanghai)   |
| Recipient requires data stored inside Mainland China    | Mainland China (Shanghai) |
| Sending to Southeast Asia (Vietnam, Thailand, Malaysia) | APAC — Hong Kong          |
| UAE or Gulf region                                      | UAE & Middle East (Dubai) |

## Use cases

<CardGroup cols={2}>
  <Card title="Export manufacturers" icon="industry">
    Share product specs, technical drawings, and compliance documents with overseas buyers who need fast access without VPNs.
  </Card>

  <Card title="Trading companies" icon="arrows-left-right">
    Route transfer links to Chinese factories and suppliers without worrying about Great Firewall blocks on standard services.
  </Card>

  <Card title="Sourcing agents" icon="magnifying-glass">
    Send high-resolution product photos and sample approval documents between your office and APAC vendors at full speed.
  </Card>

  <Card title="Logistics firms" icon="truck">
    Deliver shipping manifests, customs documents, and warehouse reports to partners in Hong Kong, Shanghai, and Dubai instantly.
  </Card>
</CardGroup>