# CM4 / RS485 development boards

- Category: Development boards > Other development boards
- Also known as: CM4, CM4 / RS485 development boards, CM4 RS485 board, RS485, Raspberry Pi CM4 Four-Channel Isolated RS485 Expansion Board, Raspberry Pi CM4 Four-Channel Isolated RS485 Expansion Board with Dual Ethernet and HDMI, 双网口开发板, 树莓派CM4四路RS485扩展板
- Product page: https://partlark.xyz/p/c-cm4-rs485-development-boards-a4945a229f

## Details

- Identified as: CM4 / RS485

## Listings

Cached marketplace data: goods prices in CNY, freight, taxes and fees excluded. Prices, stock and options can change; confirm on the listing before ordering.

### 1. 微雪电子waveshare代理店 (Taobao)

- Price: ¥307.95 per item
- Listing status: listed; details checked 2026-11-14
- Marketplace listing: https://item.taobao.com/item.htm?id=667576041366
- Order via Superbuy (affiliate link): https://www.superbuy.com/en/page/buy/?platform=TB&id=667576041366&partnercode=EU3LLB&trackPayload=pc_share
- Matching options (PartLark variant links for the haul or bulk add):
  - Board only (option price ¥307.95, stock 200, best pick): https://partlark.xyz/p/c-cm4-rs485-development-boards-a4945a229f/variant?listing=34061&sku=5024081678651

## Ordering

Paste one or more variant links (one per line) into https://partlark.xyz/basket/bulk-add to add them to a haul. Matches are checked automatically and are not a guarantee of compatibility.