---
product_id: 264096603
title: "Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129)"
brand: "syba"
price: "168741₫"
currency: VND
in_stock: false
reviews_count: 9
url: https://www.desertcart.vn/products/264096603-syba-dual-m-2-m-key-nvme-ports-to-pcie
store_origin: VN
region: Vietnam
---

# PCIe 3.0 x8 upstream bandwidth Dual M.2 NVMe ports with dedicated x4 lanes Up to 6500 MB/s transfer speed Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129)

**Brand:** syba
**Price:** 168741₫
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Unlock dual NVMe power without motherboard limits!

## Quick Answers

- **What is this?** Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) by syba
- **How much does it cost?** 168741₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/264096603-syba-dual-m-2-m-key-nvme-ports-to-pcie)

## 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

- • **No Bifurcation Needed:** Works seamlessly on motherboards lacking PCIe bifurcation support.
- • **Plug & Play Versatility:** Compatible with Windows and Linux for effortless workstation upgrades.
- • **Dual Dedicated M.2 Slots:** Run two NVMe drives simultaneously without bandwidth compromise.
- • **Unmatched Transfer Speeds:** Experience transfer rates up to 20x faster than SATA SSDs.
- • **Maximized NVMe Performance:** Harness full PCIe 3.0 x8 bandwidth for blazing-fast SSD speeds.

## Overview

The Syba SI-PEX40129 is a PCIe 3.0 x16 riser card featuring ASMedia ASM2824 switches that provide two dedicated M.2 NVMe ports with PCIe 3.0 x4 lanes each. It bypasses the need for motherboard PCIe bifurcation, delivering up to 6500 MB/s transfer speeds and supporting NVMe RAID configurations, making it an ideal high-speed storage expansion for professional workstations.

## Description

The I/O Crest Si-Pex40129 Is A Great Accelerated Secondary Storage Solution For Any Workstation With True Pcie 3.0 X8 Bandwidth (X16 Interface). It Has Two M.2 Nvme Ports To Accept Two Nvme M.2 Ssds, So Each Nvme M.2 Ssd Has Dedicated Pcie 3.0 X4 Bus Bandwidth. It Delivers Transfer Speeds 20 Times Faster Than Sata Ssds. By By-Passing The Traditional Pcie 3.0 X4 Nvme Solutions, Using The Si-Pex40129 Will Allow User Add 2 M.2 Nvme Into Any Non-Bifurcation Pcie X16 Slot To Achieve Their Full Potential With A Bandwidth Of Up To 6,500 Mb/S. Unlike Onboard Dmi 3.0 Based Nvme Solutions Or Single Nvme Pci-E X4, Which Are Forced To Share A Single Pcie 3.0 X4 Lane With The Motherboard'S Data Ports, The Si-Pex40129 Combines 2- M.2 Drives To Be Able To Run On Pcie 3.0 X16 Lane. This Unique Architecture Allows The Drive To Interface Directly With The Platform'S Cpu, Which Provides Pcie X4 Bandwidth For Each Nvme Ssd!.

## Features

- AS Media's ASM2824 has a PCIe 3.0 x8 upstream port as well as 2 PCIe 3.0 x4 downstream ports. The switch is designed primarily for storage devices.
- SI-PEX40129 card uses ASM2824 switches and therefore does not rely on PCIe bifurcation supported by CPU or PCH (they will work on closed end systems that have limited PCIe bifurcation capabilities).
- Dedicated PCIe 3.0 x8 bus bandwidth fully maximizes NVMe SSDs performance
- Delivers unprecedented fast transfer speed via intelligently aggregated Dual x4 PCIe 3.0 bus bandwidth
- NVMe RAID is supported base on the motherboard chipsets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Syba |
| Product Dimensions | 21.59 x 12.83 x 2.54 cm; 408.23 g |
| Item model number | SI-PEX40129 |
| Manufacturer | Syba |
| Series | SI-PEX40129 |
| Graphics Card Interface | PCI Express |
| Wattage | 1 |
| Operating System | Windows, Linux |
| Are Batteries Included | No |
| Item Weight | 408 g |

## Product Details

- **Brand:** Syba
- **Hardware interface:** PCI, PCIE x 4
- **Style:** 2 M.2 M-key Slot
- **Item weight:** 0.9 Pounds
- **Compatible devices:** Personal Computer

## Images

![Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) - Image 1](https://m.media-amazon.com/images/I/51o+hCYOGAL.jpg)
![Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) - Image 2](https://m.media-amazon.com/images/I/51P8E72zrCL.jpg)
![Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) - Image 3](https://m.media-amazon.com/images/I/41W6L11h-ML.jpg)
![Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) - Image 4](https://m.media-amazon.com/images/I/5193AsbrCpL.jpg)
![Syba Dual M.2 M-Key Nvme Ports To Pcie 3.0 X16 Bifurcation Riser Controller - Support Non-Bifurcation Motherboard (Si-Pex40129) - Image 5](https://m.media-amazon.com/images/I/41ZT7ahwI5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Careful with the underside capacitors...
  

*by C***N on Reviewed in the United Arab Emirates 🇦🇪 on 21 January 2020*

I bought this card together with the Sapphire Radeon Nitro+ for my 4.1 Mac Pro (Early 2009).This graphics card is very thick and takes up part of the space reserved for pcie slot 2 where the Crest card is meant to go. At some point, the fans of the graphics card must have hit the capacitors and 3 of them have come off. The card was working perfectly and I look forward to having it fixed to get the amazing performance I was having up to that point (and as others are reporting). The card is currently working without any issues on an X4 lane pcie slot (Slot 4 to be precise and I get no reboots, at half the potential performance). I did write to the manufacturer for directions on how to repair it, however I have had no response whatsoever, so you know what to expect if you have any issues with this card.Can I recommend this card? Most definitely! I give it 4 stars because it would have been nice for the underside to be more protected. It does what is advertised to do. Just be very careful with the graphics card you put below and take precautions so that the capacitors have enough space.

### ⭐⭐ 







  
  
    Item faulty
  

*by C***E on Reviewed in the United Arab Emirates 🇦🇪 on 5 November 2022*

Have 2 of these already and worked on HP Z820 - this unit is just faulty will order a new one when receiving a refund. Quality check was not done on this unit.

### ⭐⭐⭐⭐⭐ 







  
  
    It was working as expected on my Mac pro mid 2010
  

*by I***. on Reviewed in the United Arab Emirates 🇦🇪 on 20 April 2022*

It's worth and I was lucky because I bought it for cheap when price was down speed was from (1500MB on x4) slots until (2700MB on x16)

## 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 Vietnam*
*Store origin: VN*
*Last updated: 2026-01-24*