--- product_id: 520064299 title: "10Gbps Type-C USB 3.1 Gen2 Port Flex IO Card Small Board 3TK78AA" brand: "bestparts" price: "€ 45.49" currency: EUR in_stock: true reviews_count: 11 category: "Best Parts" url: https://www.desertcart.pt/products/520064299-10gbps-type-c-usb-3-1-gen2-port-flex-io store_origin: PT region: Portugal --- # 10Gbps blazing transfer speed Seamless HP 400-800 G4 series compatibility Universal Type-C USB 3.1 Gen2 port 10Gbps Type-C USB 3.1 Gen2 Port Flex IO Card Small Board 3TK78AA **Brand:** bestparts **Price:** € 45.49 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your HP rig with lightning-fast Type-C power and speed! ## Quick Answers - **What is this?** 10Gbps Type-C USB 3.1 Gen2 Port Flex IO Card Small Board 3TK78AA by bestparts - **How much does it cost?** € 45.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/520064299-10gbps-type-c-usb-3-1-gen2-port-flex-io) ## Best For - bestparts enthusiasts ## Why This Product - Trusted bestparts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Metal Backing:** Built tough to protect your board during installation and daily use—engineered for longevity. - • **Power Up to 15W Output:** Charge and power your USB-C devices with up to 5V/3A for reliable performance. - • **DisplayPort 1.4 Support:** Drive high-res external monitors with crisp visuals and smooth video via DP1.4 integration. - • **Plug & Play Flexibility:** Effortless installation with no drivers needed—just 3 screws to upgrade your HP EliteDesk or ProDesk. - • **Blazing 10Gbps Data Transfer:** Experience ultra-fast file moves and streaming without lag or bottlenecks. ## Overview The BestParts 10Gbps Type-C USB 3.1 Gen2 Flex IO Card (3TK78AA) is a compact, high-performance upgrade designed for HP EliteDesk and ProDesk G4 series desktops. It delivers ultra-fast 10Gbps data transfer, supports up to 15W power output, and integrates DisplayPort 1.4 for external display connectivity. Easy to install with durable construction, this module enhances your workstation’s connectivity and future-proofs your setup with versatile USB-C functionality. ## Description SPEC: Add an extra flexible Type-C USB 3.1 Gen2 IO to your DM and Tower Transfer speed up to 10Gbps Interchangeable with other modules Support up to 15w out (5V, 3A) Support up to DisplayPort 1.4HP EliteDesk 800 G4 TWR,HP EliteDesk 800 G4 SFF,HP EliteDesk 800 G4 DM(not 35w),HP EliteDesk 705 G4 DM,HP EliteDesk 705 G4 MT,HP EliteDesk 705 G4 SFF,HP ProDesk 600 G4 MT,HP ProDesk 600 G4 SFF,HP ProDesk 600 G4 DM,HP ProDesk 400 G5 MT,HP ProDesk 400 G4 DM,HP ProDesk 400 G5 SFF . Review: Works great! Sadly I won't need it anymore - I was working on a cyberdeck that used the HP 800 G4 Mini as it's brain and wanted a clean way to power the USB C monitor I had selected. This was the perfect solution and it worked WONDERFULLY. Everything I tried connected without any issues, or even drivers needed, completely flawless out of the box. It was simple to install with only 3 screws (including the case screw). It has a durable metal backing so you won't damage the board itself when trying to install a USB-C cable. These HP add-in cards are also a LOT more affordable and far more available than the competitors. Unfortunately for me I won't be able to use this board anymore as the last part of my project ended up frying the motherboard on my PC :( Totally unrelated to this product tho, I was just being stupid with my power input Review: Simple Set Up, Works As Advertised. - Works great in an Elitedesk G4 and an HP Prodesk 600 G3. Install was simple. Using it with a Yottamaster 5-Bay DAS with USB-C 3.1 Gen 2; speeds are really good especially since I am always transferring large amounts of data to/from my HDD's and SSD's. I can send data to 4 drives at the same time and maintain 230-250Mb/s on each. One thing to note if this get stuck at boot, a new option shows up in BIOS, I forget the location but there will be a new checkbox for USB-C firmware update for that flex I/O port. Disable it. Been using this for a while now with no issues. ## Features - TYPE-C Port Small Board Card 3TK78AA Compatible with HP 400 600 800 G4 DM SFF MT. - Compatible P/N: For 3TK78AA - Compatible models: For HP 400 G4 DM SFF MT; For HP 600 G4 DM SFF MT; For HP 705 G4 DM SFF MT; For HP 800 G4 DM SFF TWR - Support up to 15W out (5V, 3A), Support up to DP1.4. - You will receive: 1 x Type-C CARD board. - Warranty: 6 months. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BWDSXXS2 | | Best Sellers Rank | #206 in Laptop Computer Replacement Parts | | Brand | BestParts | | Compatible Devices | HP 400 G4 DM SFF MT, HP 600 G4 DM SFF MT, HP 705 G4 DM SFF MT, HP 800 G4 DM SFF TWR | | Customer Reviews | 4.5 out of 5 stars 31 Reviews | | Hardware Interface | USB Type C | | Item Highlight | Replacement for HP 800 G4 TWR/SFF/DM, 600 G4 MT/SFF/DM,705 G4 MT/SFF/DM, 400 G4 DM,400 G5 MT/SFF L07094-001 | | Item Weight | 0.02 kg | | Manufacturer | BestParts | | Mfr Part Number | XA.SW.115-F1 | | Model Number | XA.SW.115-F1 | | Number of Items | 1 | | Number of Packs | 1 | | Operating System | Windows, Linux | | Style | Classic | | Style Name | Classic | | Warranty Description | 6 Months warranty | ## Product Details - **Brand:** BestParts - **Compatible Devices:** HP 400 G4 DM SFF MT, HP 600 G4 DM SFF MT, HP 705 G4 DM SFF MT, HP 800 G4 DM SFF TWR - **Hardware Interface:** USB Type C - **Item Weight:** 0.02 kg - **Style:** Classic ## Images ![10Gbps Type-C USB 3.1 Gen2 Port Flex IO Card Small Board 3TK78AA - Image 1](https://m.media-amazon.com/images/I/71E1I1AxdnL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! Sadly I won't need it anymore *by J***E on July 22, 2026* I was working on a cyberdeck that used the HP 800 G4 Mini as it's brain and wanted a clean way to power the USB C monitor I had selected. This was the perfect solution and it worked WONDERFULLY. Everything I tried connected without any issues, or even drivers needed, completely flawless out of the box. It was simple to install with only 3 screws (including the case screw). It has a durable metal backing so you won't damage the board itself when trying to install a USB-C cable. These HP add-in cards are also a LOT more affordable and far more available than the competitors. Unfortunately for me I won't be able to use this board anymore as the last part of my project ended up frying the motherboard on my PC :( Totally unrelated to this product tho, I was just being stupid with my power input ### ⭐⭐⭐⭐⭐ Simple Set Up, Works As Advertised. *by A***G on June 3, 2025* Works great in an Elitedesk G4 and an HP Prodesk 600 G3. Install was simple. Using it with a Yottamaster 5-Bay DAS with USB-C 3.1 Gen 2; speeds are really good especially since I am always transferring large amounts of data to/from my HDD's and SSD's. I can send data to 4 drives at the same time and maintain 230-250Mb/s on each. One thing to note if this get stuck at boot, a new option shows up in BIOS, I forget the location but there will be a new checkbox for USB-C firmware update for that flex I/O port. Disable it. Been using this for a while now with no issues. ### ⭐⭐⭐⭐⭐ Perfect *by J***R on February 6, 2025* Genuine article works perfectly in a Prodesk 600 G4 Mini. They are not shown in the photo but the package includes the necessary screws, which I was worried about not having. The is so much better than having to goof around with DP and USB cables. Now I have a 1-cable solution for display, keyboard, and mouse. ## Frequently Bought Together - BestParts Type-C USB 3.1 Gen2 Port Flex IO Card Small Board Replacement for HP 400 600 705 800 G4 DM Mini SFF MT 3TK78AA - UGREEN USB C to Ethernet Adapter 2.5G, Ethernet Adapter for Laptop, Aluminum, Type C (Thunderbolt 4/3 Compatible) to RJ45 Network Internet, Compatible for NAS, MacBook Air/Pro, XPS, iPhone 15 Pro/Max --- ## 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.pt/products/520064299-10gbps-type-c-usb-3-1-gen2-port-flex-io](https://www.desertcart.pt/products/520064299-10gbps-type-c-usb-3-1-gen2-port-flex-io) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-27*