4 Pack Aluminum Heat Sink 40x40x20mm With Thermal Conductive Tape Cooling Kit For VRM GPU Router Stepper Driver 3D Printer NEMA 17 Peltier Module Black

4-Pack 40x40x20mm Aluminum Heat Sink with Thermal Tape Kit
✔️ 4x 40x40x20mm heatsinks, pre-applied blue tape, easy install

These compact aluminum heat sinks are designed to dissipate heat from small electronics setups like VRMs and motor drivers. They’re ideal for tight spaces in routers, GPUs, 3D printers, power supplies, and LED modules where reliable cooling is needed.

✅ 4x 40x40x20 mm (1.57 x 1.57 x 0.79 in) aluminum heatsinks with black anodized finish
✅ Pre-applied blue thermal tape backing for quick attachment
✅ Ideal for VRMs, NEMA 17 motors, TEC1-12706 modules, GPUs, routers
✅ Pack of 4 provides multiple cooling points in a compact kit
✅ Lightweight, corrosion-resistant aluminum for reliable long-term use

💡 What is a small 40x40x20mm aluminum heat sink used for in compact electronics cooling?
Here's a quick handy summary:
- handy for cooling VRMs, stepper drivers, Peltier modules
- improves heat dissipation in tight enclosures with aluminum bodies
- pre-applied tape makes mounting in small projects fast
- works with GPUs, routers, LED drivers, and power supplies