# PCF8574 modules

- Category: Interface modules > GPIO expanders & multiplexers
- Also known as: I/O扩展模块, I2C总线级联, I2C扩展板, PCF8574, PCF8574 I/O Expansion Module, PCF8574 I2C LCD Adapter Board, PCF8574扩展板转接板, PCF8574模块
- Product page: https://partlark.xyz/p/c-pcf8574-modules-8a6f93f0b5

## Details

- Identified as: PCF8574
- Chip: PCF8574

## 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. 深圳市捷源特科技有限公司 (1688)

- Listing price: ¥1.98 (option and pack size unconfirmed)
- Listing status: listed; details checked 2026-11-03
- Marketplace listing: https://detail.1688.com/offer/937438929052.html?spm=kj.xyt.api.keywordQuery&fromkv=refer:HVCVSVCRJVNFERZUGNLDMT2KKRDTIMSEI5HUEWSHJE2FIQKOJJJUYNKRLBATESZXI5CTGVCTJVNFQSCFGRKFCTK2KRDUKMSEJNMDGM2QKU6T2PJ5HVEA1111
- Order via Superbuy (affiliate link): https://www.superbuy.com/en/page/buy/?platform=ALIBABA&id=937438929052&partnercode=EU3LLB&trackPayload=pc_share
- Matching options (PartLark variant links for the haul or bulk add):
  - PCF8574 (option price ¥1.98, pack size unknown, stock 9879, best pick): https://partlark.xyz/p/c-pcf8574-modules-8a6f93f0b5/variant?listing=1525&sku=5831398697951

### 2. 深圳市福田区榕誉微电子商行 (1688)

- Listing price: ¥3.00 (option and pack size unconfirmed)
- Listing status: listed; details checked 2026-11-14
- Marketplace listing: https://detail.1688.com/offer/671179493695.html
- Order via Superbuy (affiliate link): https://www.superbuy.com/en/page/buy/?platform=ALIBABA&id=671179493695&partnercode=EU3LLB&trackPayload=pc_share
- Matching options (PartLark variant links for the haul or bulk add):
  - I2C Adapter Board (option price ¥3.00, pack size unknown, stock 8883732, best pick): https://partlark.xyz/p/c-pcf8574-modules-8a6f93f0b5/variant?listing=33999&sku=5001734282559

## 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.