Noctua NF-A4x20 5V PWM Cooling Fan 40x40x20mm | 5V 4-Pin PWM | BitAxe Gamma / ASIC Cooling Noctua NF-A4x20 5V PWM 40x40x20mm Open Box / Unused Best For BitAxe Gamma ASIC Miners 5V Electronics Premium Cooling Thank you for supporting our small family business — we’re a husband, wife, and baby son team, and every order truly means a lot to our family. We take pride in honest listings, careful packing, fast handling, and dependable customer service. Product Overview Genuine Noctua NF-A4x20 5V PWM 40x40x20mm cooling fan with a 4-pin PWM connection. This fan was purchased for one of our BitAxe Gamma miners, but the package was opened and the fan was ultimately never installed or used. IMPORTANT: THIS LISTING IS FOR THE FAN ONLY. THE ORIGINAL RETAIL BOX, SCREWS, ADAPTERS, EXTENSION CABLES, AND ALL OTHER ACCESSORIES ARE NOT INCLUDED. Compatibility & Use The NF-A4x20 5V PWM is a 40 x 40 x 20 mm, 5V, 4-pin PWM cooling fan suitable for compatible BitAxe Gamma, ASIC mining, embedded electronics, and other 5V cooling applications. This fan was originally purchased specifically for a BitAxe Gamma setup, but compatibility ultimately depends on your required fan dimensions, voltage, connector, and mounting configuration. Please verify compatibility with your intended application before purchasing. Product Highlights ✓ Noctua NF-A4x20 5V PWM ✓ 40 x 40 x 20 mm ✓ 5V DC / 4-pin PWM ✓ Premium Noctua cooling fan ✓ Purchased for a BitAxe Gamma miner ✓ Opened but never installed ✓ Never used ✓ FAN ONLY — no box or accessories included Condition Description Open-box, unused Noctua NF-A4x20 5V PWM 40x40x20mm cooling fan. The fan was opened after purchase for a planned BitAxe Gamma setup but was never installed or used. It has been stored since and presents very well overall. The original retail box and accessories are not included. Please review all photos carefully, as they are of the exact item you will receive. Important Notes This listing is for 1 Noctua cooling fan only. The fan has been opened but was never installed or used. Original retail box is NOT included. Mounting screws are NOT included. Adapters are NOT included. Extension cables are NOT included. Any other original Noctua accessories are NOT included. Please verify 40x40x20mm size, 5V voltage, 4-pin PWM connection, and mounting compatibility before purchasing. The item shown in the photos is the exact item you will receive. Ships securely packaged with care to help ensure safe arrival. USA Stock Fast Handling Careful Packing Responsive Service Visit Our store Browse more graded comics, collectibles, electronics, accessories, custom 3D prints, and other unique finds from JBR Collection. Shop JBR Collection