Mfr. Part Number
U040-B
Manufacturer
M5Stack
Datasheet
Description
I2C HUB 1 ~ 6 EXPANSION PCA9548A
RoHS Status
Lead Free / RoHS Complaint
Availability
Sourcing — Lead time quoted on request (often 3–15 business days by channel)
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U040-B
M5Stack
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In Stock5,197
Unit
Price
$7.95
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Reference Price
QuantityPrice
1$ 7.9500
Prices are for reference only. The final transaction is subject to confirmation.
As of 2026-11-05 · Valid as reference until 2026-11-12 · Request RFQ for live stock.
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Specification Summary

Contents
Board(s), Cable(s)
Function
I²C Hub
Platform
M5Stack
Type
Interface
Utilized IC / Part
PCA9548A
Full specifications are listed below. Need alternates or BOM matching? Read BOM guide · Request a quote
Stock status: Sourcing — Lead time quoted on request (often 3–15 business days by channel)
Shortage / allocation / EOL lines may need longer — ask via RFQ.
Reference price and stock shown as of 2026-11-05. Confirm live availability and unit price via RFQ before placing a PO.
Specifications
Product Description
Purchase & Inquiry
Type
Interface
Platform
M5Stack
Contents
Board(s), Cable(s)
Function
I²C Hub
Utilized IC / Part
PCA9548A
I2C HUB 1 ~ 6 EXPANSION PCA9548A
Brand Introduction

M5Stack was founded by Jimmy Lai in 2016 after he was driven to provide an ultimate solution when he saw the need for a way to bridge the gap between development and end product. He was inspired by his vision to create innovative products that accelerate development speed and enable industrial-level quality prototyping. Now, M5Stack is committed to providing an easy-to-develop and cost-effective Internet of Things (IoT) development platform at all stages.

M5Stack provides modular, stackable product development tool kits based on the ESP32, the popular Wi-Fi SoC. The M5 ecosystem consists of main controllers called cores, Grove-compatible sensors called units, stackable modules, bases, and a variety of applications for STEM, makers, and Industrial IoT (IIoT).

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Buying FAQ — U040-B

How do I buy U040-B from Yingxinyuan?

Open RFQ with quantity and target date, or upload a BOM that includes U040-B. We reply with stock, channel note, reference price and ETA.

Is the listed price final?

Prices on the product page are reference only. Confirm unit price, currency and validity via RFQ before placing a PO.

How fresh is the stock figure?

Stock and reference price show an as-of date on the page. Ask for a live confirm — allocation lines can change daily.

How do you source authentic parts?

We source from manufacturers, franchised distributors and verified independents, then inspect incoming lots. See /anti-counterfeit/.

What is a typical lead time?

In-stock lines often ship within 24–48 hours after confirmation. Sourcing / allocation ETAs are quoted per line — see /lead-time-shipping/.