--- product_id: 623151279 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 (with 4Pin Cable Higher)" brand: "jmt" price: "€ 107.67" currency: EUR in_stock: true reviews_count: 3 url: https://www.desertcart.gr/products/623151279-jmt-pci-e-4-0-x16-1-to-2-expansion store_origin: GR region: Greece --- # PCIe 4.0 x16 full bandwidth Power-on LED indicator CPU4P auxiliary power port 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 (with 4Pin Cable Higher) **Brand:** jmt **Price:** € 107.67 **Availability:** ✅ In Stock ## Summary > 🚀 Double your GPU power, halve your worries! ## 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 (with 4Pin Cable Higher) by jmt - **How much does it cost?** € 107.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/623151279-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 - • **Smart Connectivity:** Next-gen Gen4 connectors with dust plugs and snap-locks keep your connections secure and pristine. - • **Dual x8 Slot Expansion:** Split a single x16 slot into two x8 slots with 20mm spacing—perfect for multi-GPU setups without compromise. - • **Instant Status Feedback:** Built-in power-on LED indicator lets you monitor your expansion card’s status at a glance. - • **Maximize GPU Throughput:** Leverage PCIe 4.0 x16 full bandwidth for blazing-fast data transfer and future-proof your rig. - • **Reliable Power Delivery:** Integrated CPU4P power port ensures stable, supplemental power to avoid bottlenecks during heavy workloads. ## Overview The JMT PCI-E 4.0 x16 1 to 2 Expansion Card enables seamless bifurcation of a single PCIe x16 slot into two x8 slots, supporting PCIe Gen3 and Gen4 protocols. Featuring enhanced gold-plated contacts, a CPU4P auxiliary power port for stable power delivery, and a power-on LED indicator, it’s designed for professionals seeking efficient multi-GPU setups with reliable performance and easy monitoring. ## 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 | |---------------|-------| | Asin | B0CRR77TB2 | | Best Sellers Rank | #183 in Internal Computer Networking Cards | | Brand | JMT | | Compatible Devices | Personal Computer, Laptop | | Customer Reviews | 3.2 3.2 out of 5 stars (4) 3.2 out of 5 stars | | Hardware Interface | PCI Express 3.0 | | Item Weight | 2.4 ounces | | Manufacturer | JMT | | Mfr Part Number | F47986 | | Model Number | F47986 | | Operating System | Windows, macOS, Linux | | Style Name | Classic | | Warranty Description | 1 | ## Product Details - **Brand:** JMT - **Compatible Devices:** Personal Computer, Laptop - **Hardware Interface:** PCI Express 3.0 - **Item Weight:** 0.15 Pounds - **Style:** Classic ## 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 (with 4Pin Cable Higher) - Image 1](https://m.media-amazon.com/images/I/51hMAWL0nxL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐ mine could not negotiate beyond gen 1, on one port. *by on Reviewed in the United States 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? ### ⭐ Gen3 card spliter.. *by on Reviewed in the United Kingdom April 15, 2025* Stated 4.0 but read on from the title. As i think the lister of the item is trying to hit search results. This is for Gen3 and as such it will ever not work, like in my situation, or you will have slower speeds. ### ⭐⭐⭐⭐⭐ efficace et très utile *by on Reviewed in France May 22, 2024* J'ai une carte mATX pour construire mon DIY NAS.Je n'ai qu'un port PCIE x16 sur cette carte mère.- il y a un port X4 pour une carte intel 2 ports RJ45 10Gb/s- un port nvme transformé en port PCIE x4 pour une carte SFP+ 10Gb/sPas besoin de carte graphique, donc j'aimerais utilisé ce port (16 lignes) pour autre chose.1 carte HBA (4X4 ports SATA) pour les disques, c'est bien, mais c'est une carte x8 et n'est pas optimal pour du disque en miroir.2 HBA seraient plus utiles, mais il faut 2 ports x8.Et ben voilà, cette carte est exactement fait pour ça : diviser x16 en x8 + x8.bien sûr, il faut activer la bifurcation dans le BIOS en fonction du résultat voulu : ici 2 fois x8.j'ai essayé le 4 fois X4, mais d'après mes lectures, certaine puces intel ne permettent que x8x4x4.Sur les photos, on voit (CPU watercoolé):- cable rizer pour brancher cette carte de bifurcation pcie- 2 carte HBA SAS sur cette carte de bifurcation- NAS boitier fermé à moins de 30° en vitesse de croisière. ## 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 (with 4Pin Cable Higher) - AsiaHorse New PCIE 3.0 16x High Speed Flexible Extender Riser Cable Card Extension Port Adapter 200mm(90 Degree Angle Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/623151279-jmt-pci-e-4-0-x16-1-to-2-expansion](https://www.desertcart.gr/products/623151279-jmt-pci-e-4-0-x16-1-to-2-expansion) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-12*