---
product_id: 644159842
title: "PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port"
brand: "jmt"
price: "$557"
currency: NZD
in_stock: true
reviews_count: 5
category: "Jmt"
url: https://www.desertcart.nz/products/644159842-pci-e-4-0-x16-1-to-2-expansion-card
store_origin: NZ
region: New Zealand
---

# PCIe 4.0 x16 full bandwidth Power-on LED indicator Supports x8x8 bifurcation mode PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port

**Brand:** jmt
**Price:** $557
**Availability:** ✅ In Stock

## Summary

> 🚀 Double your PCIe lanes, double your power — bifurcate like a pro!

## Quick Answers

- **What is this?** PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port by jmt
- **How much does it cost?** $557 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/644159842-pci-e-4-0-x16-1-to-2-expansion-card)

## Best For

- jmt enthusiasts

## Why This Product

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

## Key Features

- • **Maximize GPU Power:** Unlock full PCIe 4.0 x16 bandwidth for next-gen performance.
- • **Dual Slot Expansion:** Split one x16 slot into two x8 slots with 20mm spacing for versatile multi-GPU setups.
- • **Robust Build Quality:** Gold finger 5U thickness & dust-proof Gen4 connectors ensure durability and stable connections.
- • **Seamless Compatibility:** Works flawlessly with Gen3/Gen4 motherboards supporting bifurcation—future-proof your rig.
- • **Smart Power Management:** CPU4P auxiliary power port plus power-on LED for reliable, monitored power delivery.

## Overview

The JMT PCI-E 4.0 x16 1 to 2 Expansion Card is a high-performance Gen4 bifurcation adapter that splits a single PCIe x16 slot into two x8 slots with full PCIe 4.0 bandwidth support. Featuring 20mm spaced slots, gold-plated connectors, a CPU4P auxiliary power port, and a power-on LED indicator, it ensures stable, reliable multi-GPU or multi-device setups on compatible motherboards with bifurcation BIOS support.

## Description

JMT PCI-E 4.0 x16 1 to 2 Expansion Card Gen*3 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port Features: 1, PCIE X16 full bandwidth 4. 0 , GEN*3 protocol, compatible with gen3\gen4(Specific circumstances are required to fully operate in GEN4 state). 2,Conditions of use: Motherboard BlO*S supports changing PCIE operating mode to X8X8. 2,Gold finger sinking process, increase gold thickness to 5U. 3,Adopt new generation GEN*4 connector with dust plug and snap. 4,With clock splitting IC. 5,With power on LED indicator. 6,With CPU4P auxiliary power supply port. 7, 2cm slot spacing. Supports PCIE extension cable adapter. Instructions for use：1.Have a motherboard with vifurcation, make sure the motherboard is in the support list of the product.2. Enter the motherboard BIOS and set for the PCIE slots to X8X8 mode.3. Make sure the adapter is installed into the slot that is set to X8X8, not another PCIE slot.Warm Tips:1. If the two graphics cards are not running, you can set the PCIE speed to GEN3 and try it.2. the device does not consume power, the motherboard provides a maximum of 75W to the PCIE, 75W if distributed to the two GPUs will result in insufficient power at the PCIE end, so additional supplementation is required, no matter how much supplementation you provide, it will only get what is needed.

Review: With the addition of a x16 riser, this works great with my Z490 Phantom Gaming-ITX/TB3 motherboard. My ITX case (Nanoxia Project S Mini) came without a riser and to make matters worse, the pcie slots are oriented backwards (card end connector away from motherboard). This bifurication card allowed me to securely mount a single slot Nvidia Quadro card and a four port Elgato capture card. Initially I used a riser cable from another brand as it was the only one I could find that would tolerate a complete 180 turn and still fit without unsafe bending. I had issues with the PC locking up using that setup. Switching to the "JMT PCIE 4.0 X16 Extension Cable...", although pricey, fixed the crashing issues. I definitely recommend keeping the whole chain JMT brand, even if its going to cost you a bit more.
Review: setup: MITX pcie4.0 bus to bifurcation X8X8 gen 4 for sff pc. Split for rtx4070super and sound blaster AE9. Plug and play on Asus and Asrock after bios setting. Works flawlessly from mother board bus to riser to this splitter. No divers issues. Recommended for this use.

## Features

- PCIE X16 full bandwidth 4. 0 , GEN*4 protocol, compatible with gen3 / gen4(Specific circumstances are required to fully operate in GEN4 state).
- Conditions of use: Motherboard BlO*S supports changing PCIE operating mode to X8X8.
- Gold finger sinking process, increase gold thickness to 5U.
- Adopt new generation GEN*4 connector with dust plug and snap. 2cm slot spacing. Supports PCIE extension cable adapter.
- With clock splitting IC. With power on LED indicator. With CPU4P auxiliary power supply port.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHNPKCL5 |
| Batteries Included | No |
| Batteries Required | No |
| Brand | JMT |
| Compatible Devices | Desktop Computer |
| Country of Origin | USA |
| Customer Reviews | 5.0 5.0 out of 5 stars (9) |
| Date First Available | 22 August 2023 |
| Graphics Card Interface | PCI-Express x16 |
| Hardware Interface | PCI Express x16 |
| Item Weight | 59 g |
| Item model number | N47986 |
| Manufacturer | JMT |
| Model | N47986 |
| Number of items | 1 |
| Operating System | Windows, macOS, Linux |
| Package Dimensions | 22.5 x 16.99 x 2.01 cm; 59 g |

## Product Details

- **Brand:** JMT
- **Compatible Devices:** Desktop Computer
- **Hardware Interface:** PCI Express x16
- **Item Weight:** 0.06 Kilograms
- **Style:** Classic

## Images

![PCI-E 4.0 x16 1 to 2 Expansion Card Gen4 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port - Image 1](https://m.media-amazon.com/images/I/51vmRGON94L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***R on 8 September 2024*

With the addition of a x16 riser, this works great with my Z490 Phantom Gaming-ITX/TB3 motherboard. My ITX case (Nanoxia Project S Mini) came without a riser and to make matters worse, the pcie slots are oriented backwards (card end connector away from motherboard). This bifurication card allowed me to securely mount a single slot Nvidia Quadro card and a four port Elgato capture card. Initially I used a riser cable from another brand as it was the only one I could find that would tolerate a complete 180 turn and still fit without unsafe bending. I had issues with the PC locking up using that setup. Switching to the "JMT PCIE 4.0 X16 Extension Cable...", although pricey, fixed the crashing issues. I definitely recommend keeping the whole chain JMT brand, even if its going to cost you a bit more.

### ⭐⭐⭐⭐⭐ Review
*by M***A on 3 April 2024*

setup: MITX pcie4.0 bus to bifurcation X8X8 gen 4 for sff pc. Split for rtx4070super and sound blaster AE9. Plug and play on Asus and Asrock after bios setting. Works flawlessly from mother board bus to riser to this splitter. No divers issues. Recommended for this use.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 10 September 2024*

Connected with a 16x riser cable to a mATX mobo capable of 8x/8x bifurcation. Fits in 2U case next to mobo and works a treat. I get my full 2x 8lane PCIe slots after all.

## Frequently Bought Together

- JMT PCI-E 4.0 x16 1 to 2 Expansion Card Gen3 Split Card PCIe-Bifurcation x16 to x8x8 with 20mm Spaced Slots CPU4P Power Supply Port (+4Pin Cable)
- Okinos, PCI-E 4.0 Riser Cable, Compatible with RTX4090, RTX4080, RX7900XTX, PCIe 4.0 x16 High Speed Flexible Extender Card Extension Port 90 Degree Adapter, 200mm Black

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-03*