> For the complete documentation index, see [llms.txt](https://inacks.gitbook.io/is4310-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://inacks.gitbook.io/is4310-wiki/appendix/product-selection-guide.md).

# Product Selection Guide

> This page is not the authoritative source for design information. The official [IS4310 datasheet](https://www.inacks.com/is4310) published on [www.inacks.com](http://www.inacks.com) is the authoritative reference: always consult it for the latest information.

## Only Stack

<table><thead><tr><th width="140">Part Number</th><th width="130">Form Factor</th><th width="110">Physical Layer</th><th width="120">Stack</th><th>Description</th></tr></thead><tbody><tr><td>IS4310-S8</td><td>SO8N</td><td>UART</td><td>Modbus RTU Server</td><td>Modbus RTU Slave Stack Chip. <a href="https://inacks.com/is4310">Visit Product Page</a>. Contact us for smaller IC packages or product customization.</td></tr></tbody></table>

## Stack with Physical Layer

<table><thead><tr><th width="140">Part Number</th><th width="130">Form Factor</th><th width="110">Physical Layer</th><th width="120">Stack</th><th>Description</th></tr></thead><tbody><tr><td>IS4310-485M2</td><td>Castellated Holes Module</td><td>RS485</td><td>Modbus RTU Server</td><td>IS4310 with RS485 Transceiver. Industrial communications. <a href="https://inacks.com/is4310-485m2">Visit Product Page</a></td></tr><tr><td>IS4310-ISO485M6</td><td>Castellated Holes Module</td><td>Isolated RS485</td><td>Modbus RTU Server</td><td>IS4310 with Isolated RS485 Transceiver. The isolation offers more robust communications and longer RS485 bus distances. <a href="https://inacks.com/is4310-iso485m6">Visit Product Page</a></td></tr><tr><td>IS4310-232M4</td><td>Castellated Holes Module</td><td>RS232</td><td>Modbus RTU Server</td><td>IS4310 with RS232 Transceiver. <a href="https://inacks.com/is4310-232m4">Visit Product Page</a></td></tr></tbody></table>

## Evaluation Boards

<table><thead><tr><th width="140">Part Number</th><th width="130">Form Factor</th><th width="110">Physical Layer</th><th width="120">Stack</th><th>Description</th></tr></thead><tbody><tr><td>Kappa4310Ard</td><td>Arduino Compatible</td><td>RS485</td><td>Modbus RTU Server</td><td>IS4310 Evaluation Board with RS485 Transceiver. Compatible with Arduino. <a href="https://inacks.com/kappa4310ard">Visit Product Page</a></td></tr><tr><td>Kappa4310Rasp</td><td>Raspberry Pi Compatible</td><td>RS485</td><td>Modbus RTU Server</td><td>IS4310 Evaluation Board with RS485 Transceiver. Compatible with Raspberry Pi. <a href="https://inacks.com/kappa4310rasp">Visit Product Page</a></td></tr></tbody></table>