---
title: SAS Expanders
url: https://www.broadcom.com/products/storage/sas-expanders
description: Enable massive storage infrastructure for data-intensive applications
---

# SAS Expanders

Enable massive storage infrastructure for data-intensive applications. SAS expanders allow servers, controller cards and external storage to connect to large numbers of drives. DataBolt technology aggregates the bandwidth of SATA storage devices to provide higher system performance.

|  | Product | Generation | Storage Enclosure Processor (SEP) | Internal Memory | SAS Ports | Wide Port Support | Port Mirroring | Route Table Entries | External Memory Interfaces | Security Features | GPIO | Package |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| ![](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/bltd9ed224c6f331d2c/610c0ae3ae8b1139431e02fd/SAS4x24.jpeg) | [SAS4x24 Expander](https://www.broadcom.com/products/storage/sas-expanders/sas-4x24)<br>Product Line<br>SAS Expanders | — | ARM Cortex R4 600MHz | 4 MB SRAM | 24 | — | Yes (Broadcom IP) | 2048 | 8/16-bit parallel NOR Flash with five chip selects SRAM, NV SRAM; Serial SPI with up to five chip selects | True Random Number Generator (TRNG)/Hash & HMAC Generator/Secret Root Key/Hardware Secure Boot | 36 (maximum) | 27x27 mm |
| ![](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/blt77da386b0ee2fd08/610c059e4df16d3d6de3ce9e/SAS4x32.jpeg) | [SAS4x32 Expander](https://www.broadcom.com/products/storage/sas-expanders/sas-4x32)<br>Product Line<br>SAS Expanders | — | ARM Cortex R4 600MHz | 4 MB SRAM | 32 | Yes | Yes (Broadcom IP) | 2048 | 8/16-bit parallel NOR Flash with five chip selects SRAM, NV SRAM; Serial SPI with up to five chip selects | True Random Number Generator (TRNG)/Hash & HMAC Generator/Secret Root Key/Hardware Secure Boot | 36 (maximum) | 27x27 mm |
| ![](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/bltb4564a7c83b664fc/610bff085d80fd1b92ab81eb/SAS4x40.jpeg) | [SAS4x40 Expander](https://www.broadcom.com/products/storage/sas-expanders/sas4x40)<br>Product Line<br>SAS Expanders | — | ARM Cortex R4 600MHz | 4 MB SRAM | 40 | Yes | Yes (Broadcom IP) | 2048 | 8/16-bit parallel NOR Flash with five chip selects SRAM, NV SRAM; Serial SPI with up to five chip selects | True Random Number Generator (TRNG)/Hash & HMAC Generator/Secret Root Key/Hardware Secure Boot | 36 (maximum) | 27x27 mm |
| ![](https://www.broadcom.com/media/blt4ac44e0e6c6d8341/bltbdc7ac6b9657ba32/610ab7ed365a7d358c6be584/SAS4x48.jpeg) | [SAS4x48 Expander](https://www.broadcom.com/products/storage/sas-expanders/sas-4x48)<br>Product Line<br>SAS Expanders | — | ARM Cortex R4 600MHz | 4 MB SRAM | 48 | Yes | Yes (Broadcom IP) | 2048 | 8/16-bit parallel NOR Flash with five chip selects SRAM, NV SRAM; Serial SPI with up to five chip selects | True Random Number Generator (TRNG)/Hash & HMAC Generator/Secret Root Key/Hardware Secure Boot | 36 (maximum) | 27x27 mm |

## Also of Interest

- [Storage Adapters, Controllers, and ICs](https://www.broadcom.com/products/storage)
- [Host Bus Adapters](https://www.broadcom.com/products/storage/host-bus-adapters)
- [MegaRAID 9580-8i8e](https://www.broadcom.com/products/storage/raid-controllers/megaraid-9580-8i8e)