Here is an NVIDIA Quadro RTX 4000 8GB GDDR6 graphics card — expertly inspected, benchmarked, cleaned, refurbished with new thermal paste and stress-tested by Retro Graphics, ready to install. 
(This is card #1 — I also have another matching PNY RTX 4000 available seperately; see my other items.)

Please check my feedback to see how pleased buyers are with graphics cards supplied by Retro Graphics. 
Each GPU I sell is individually tested for multiple hours — graphics cards are the hardware I specialise in.

Even though this graphics card has had very little use, the card has just been professionally cleaned and serviced, with fresh premium thermal paste applied to support optimal cooling and long-term reliability for the future.
 I understand how important reliability is with workstation/Quadro-class cards, particularly for professional use, so this has been refurbished with that in mind. OCCT Pro Certified for stability etc. Please ask if you would like the certification link or test screenshots

These RTX 4000 are a workstation card based on NVIDIA’s Turing architecture, built for reliability and consistent performance in more demanding applications. I was also pleasantly surprised by how well it did in gaming workloads too, especially considering that it is a single slot card!
With 8GB of GDDR6 memory and hardware ray tracing support, it’s well suited to CAD work, 3D modelling, rendering, and other GPU-accelerated tasks.

I find these to be a great option for workstation builds or even more compact systems. The single-slot blower-style cooler pushes hot air straight out of the rear of the case, which helps keep overall system temperatures under control, especially where airflow is limited.

These also work particularly well in multi-GPU setups as the single-slot design allows multiple cards to be installed in tighter spaces without restricting airflow as much as larger dual or triple-slot models. It’s a sensible choice if you’re after something efficient with stable, professional-grade driver support.

Please message me with any questions, I'm always happy to help. Many more photos available.

🔧 Performance Assured: Stress-tested, benchmarked and inspected for reliable operation. Multiple hours of documented load testing completed on each card using various 3DMark benchmarks, Unigine benchmarks, FurMark, OCCT Pro (commercial edition) under a valid licence held by Retro Graphics.
🖥️ Outputs Verified: All ports tested and working correctly (HDMI, DisplayPort, DVI where applicable).
✨ Great Clean Condition: All photos are of the actual item — please refer to them for condition. Minor cosmetic marks and blemishes may be present, as expected with a used workstation item, but nothing that affects performance or use.
📦 FREE Fast & Safe Shipping: Carefully packed with anti-static protection. Free Royal Mail Tracked 48 postage, with Tracked 24 upgrade available at checkout.