---
product_id: 733617536
title: "Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129)"
brand: "syba"
price: "A$16"
currency: AUD
in_stock: false
url: https://www.desertcart.com.au/products/733617536-syba-dual-m-2-m-key-nvme-ports-pcie-3
store_origin: AU
region: Australia
---

# PCIe 3.0 x16 bandwidth Dual M.2 NVMe ports Up to 6,500 MB/s transfer speed Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129)

**Brand:** syba
**Price:** A$16
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Double your NVMe speed, double your edge.

## Quick Answers

- **What is this?** Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) by syba
- **How much does it cost?** A$16 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/733617536-syba-dual-m-2-m-key-nvme-ports-pcie-3)

## Best For

- syba enthusiasts

## Why This Product

- Trusted syba brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **20x Faster Than SATA SSDs:** Experience transfer speeds up to 6,500 MB/s, leaving traditional storage solutions in the dust.
- • **Unleash True PCIe 3.0 x16 Power:** Maximize your workstation’s throughput with a dedicated PCIe 3.0 x8 upstream port, ensuring no bottlenecks.
- • **Break Free from Motherboard Limits:** Works seamlessly with non-branch motherboards and closed-end systems, expanding your upgrade options.
- • **Plug & Play with Windows and Linux:** Ready for professional environments with broad OS compatibility and included mounting hardware.
- • **Dual M.2 NVMe Ports for Ultimate Storage:** Add two blazing-fast NVMe SSDs with independent PCIe 3.0 x4 lanes each—no shared bandwidth compromises.

## Overview

The Syba SI-PEX40129 is a high-performance PCIe 3.0 x16 riser card featuring an ASMedia ASM2824 switch that enables two M.2 NVMe SSDs to run simultaneously at full PCIe 3.0 x4 bandwidth each. Designed for workstations and non-branch motherboards, it delivers up to 6,500 MB/s transfer speeds—20 times faster than SATA SSDs—while supporting NVMe RAID and broad OS compatibility.

## Description

I/O CREST SI-PEX40129 is a great accelerated secondary storage solution for workstations with a true PCIe 3.0 x8 bandwidth (x16 interface). With two M.2 NVMe ports that accept two NVMe M.2 SSDs, each NVMe M.2 SSD has a dedicated PCIe 3.0 x4 busbandwidth. Provides 20x transfer speed than SATA SSD. By passing the traditional PCIe 3.0 x4 NVMe solution, the SI-PEX40129 allows users to add 2 M.2 NVMe to any isolated PCIe x16 slot and achieve maximum potential with bandwidth of up to 6,500 MB/s. Unlike onboard DMI 3.0 based NVMe solution or single NVMe PCI-e x4 lanes that require sharing a single PCIe 3.0 x4 lane, the SI-PEX40129 can be combined with two M.2 drives and run on PCIe 3.0 x16 lanes. This unique architecture allows the drives to be directly interface with the platform CPU, providing a PCIe x4 bandwidth for each NVMe SSD.

## Features

- AS Media ASM2824 features a PCIe 3.0 x8 upstream port and two PCIe 3.0 x4 downstream ports. The switch is mainly designed for storage devices
- The SI-PEX40129 card uses an ASM2824 switch, which is not dependent on the PCIe branch supported by the CPU or PCH (works with closed-end systems where PCIe branch functions are limited)
- Dedicated PCIe 3.0 x8 bus bandwidth fully maximizes NVMe SSD performance
- Intelligently integrated dual x4 PCIe 3.0 bus bandwidth provides unprecedented high-speed transfer rates
- NVMe RAID is supported by the base of the motherboard chipset

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Compatible Devices | Personal Computer |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Syba |
| Manufacturer | Syba |
| Item Model Number | SI-PEX40129 |
| Included Components | (1) Dual M.2 to BiFurcation PCIe x16 Adapter, (1) Screwdriver, 1 x M.2 Mounting Screw |
| Operating System | Windows, Linux |
| Product Dimensions | 21.59 x 12.83 x 2.54 cm; 408.23 g |
| Item Weight | 0.9 Pounds |

## Product Details

- **Brand:** Syba
- **Hardware Interface:** PCI, PCIE x 4
- **Style:** 2M.2 M key slot
- **Item Weight:** 0.9 Pounds
- **Compatible Devices:** Personal Computer

## Images

![Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) - Image 1](https://m.media-amazon.com/images/I/51o+hCYOGAL.jpg)
![Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) - Image 2](https://m.media-amazon.com/images/I/51P8E72zrCL.jpg)
![Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) - Image 3](https://m.media-amazon.com/images/I/41W6L11h-ML.jpg)
![Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) - Image 4](https://m.media-amazon.com/images/I/5193AsbrCpL.jpg)
![Syba Dual M.2 M-Key NVMe Ports - PCIe 3.0 x16 Branch Riser Controller - Supports Non-Branch Motherboard (SI-PEX40129) - Image 5](https://m.media-amazon.com/images/I/41ZT7ahwI5L.jpg)

## Frequently Bought Together

- I/O CREST SI-PEX40129 Dual M.2 NVMe Ports to PCIe 3.0 x16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard
- GLOTRENDS PA09-HS M.2 NVMe to PCIe 4.0 X4 Adapter with M.2 Heatsink for 2280/2260/2242/2230 M.2 NVMe SSD
- GLOTRENDS PA21 Dual M.2 NVMe to PCIe 4.0 X8 Adapter Without PCIe Bifurcation Function, Support 22110/2280/2260/2242/2230 Size (PCIe Bifurcation Motherboard is Required)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-07*