---
product_id: 637884030
title: "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 (SATA)"
brand: "jmt"
price: "$181.40"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/637884030-jmt-pci-e-4-0-x16-1-to-2-expansion
store_origin: EC
region: Ecuador
---

# PCIe 4.0 x16 full bandwidth CPU4P auxiliary power port Gold finger 5U thickness for durability 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 (SATA)

**Brand:** jmt
**Price:** $181.40
**Availability:** ✅ In Stock

## Summary

> 🚀 Double your GPU power, halve your bottlenecks!

## Quick Answers

- **What is this?** 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 (SATA) by jmt
- **How much does it cost?** $181.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/637884030-jmt-pci-e-4-0-x16-1-to-2-expansion)

## 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

- • **Built to Last:** Enhanced gold finger plating (5U) ensures superior conductivity and longevity.
- • **Next-Gen Speed:** Supports PCIe Gen3/Gen4 protocols with full 4.0 bandwidth for future-proof performance.
- • **Optimized Spacing:** 20mm slot spacing supports larger GPUs and PCIe extension cables without compromise.
- • **Maximize GPU Power:** Split your PCIe x16 slot into dual x8 lanes for ultimate multi-GPU setups.
- • **Plug & Play Confidence:** Equipped with dust-proof Gen4 connectors and LED power indicators for hassle-free installation.

## Overview

The JMT PCI-E 4.0 x16 1 to 2 Expansion Card enables bifurcation of a single PCIe x16 slot into two x8 slots, supporting PCIe Gen3 and Gen4 protocols with full 4.0 bandwidth. Featuring enhanced 5U gold finger plating, dust-proof Gen4 connectors with LED indicators, and a CPU4P auxiliary power port, it ensures stable, high-speed multi-GPU configurations with optimal slot spacing for large cards and extension cables. Ideal for professionals seeking to maximize GPU performance 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.

## 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 |
|---------------|-------|
| Brand | JMT |
| Item model number | F47986 |
| Operating System | Windows, macOS, Linux |
| Item Weight | 2.4 ounces |
| Package Dimensions | 7.17 x 3.27 x 1.69 inches |
| Color | SATA PCI-E 4.0 |
| Manufacturer | JMT |
| ASIN | B0CVTNLL21 |
| Date First Available | February 17, 2024 |

## Product Details

- **Brand:** JMT
- **Hardware Interface:** PCI Express 4.0
- **Style:** Classic
- **Item Weight:** 2.4 ounces
- **Compatible Devices:** Personal Computer, Laptop, Server

## Images

![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 (SATA) - Image 1](https://m.media-amazon.com/images/I/61JLA1bHI1L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great in an ITX case with cramped quarters!
*by K***R on September 8, 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.

### ⭐ useless because it is too small
*by T***M on September 21, 2025*

Connector doesn't extend out enough to use with even just one GPU. You'd need THREE riser cables on top of this to even attempt to use it.

### ⭐⭐⭐ mine could not negotiate beyond gen 1, on one port.
*by B***L on May 27, 2025*

mine could not negotiate beyond gen 1, on one port. Other than that it seemed nicely built. However I returned it. Another style worked fine. I wanted this wider style but didn't try again. Bad luck?

## 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 (SATA)
- Crucial 96GB DDR5 RAM, 5600MHz (or 5200MHz or 4800MHz) Laptop Memory Kit, SODIMM 262-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 6000 - CT2K48G56C46S5
- EZDIY-FAB Vertical GPU Mount with High-Speed PCIE 4.0 Riser Cable, Shield Series, 115mm/4.52in Flexible Extension, 90 Degree Connector, Only Compatible to Full-Opened PCIe Slots-Black-YIHPI344

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-28*