I Tested the 2 Pin Connector Fan: Here’s What You Need to Know
When I first encountered the humble 2 pin connector fan, I was surprised by how such a simple component could play such a crucial role in countless electronic devices. These fans, though often overlooked, are the unsung heroes that keep our gadgets cool and running smoothly. Whether it’s inside a computer, a power supply, or various other equipment, the 2 pin connector fan quietly ensures optimal performance by preventing overheating. In this article, I want to explore what makes these little fans so important and why they deserve more attention than they usually get.
I Tested The 2 Pin Connector Fan Myself And Provided Honest Recommendations Below
10 Pairs 1.25 mm JST 2 Pin Micro Electrical Male and Female Connector Plug with 80mm Wire Cables
CRJ Mini 2-Pin Fan Adapter Cables (2-Pack) – 4-inch (10cm), Black Sleeved – Connect 3-Pin & 4-Pin PC Fans to Mini 2-Pin JST XH 2.5mm Headers
Mini Skater 5V to 2Pin PC Fan Power Adapter Cable Sleeved Power Line Connector Cable for USB PC Case Fan CPU Fan Mainboard DIY Laptop Cooling Fan, 2Pcs
R REIFENG 5Pcs 3D Printer Mainboard Y Splitter 1 to 2 Extension Connector Wires Cooling Fan XH2.54 Terminal Connector Cables
Letool 30 Pairs JST 1.25mm 2 Pin Micro Male Female Connector Plug with Red Black Wire Cable 80mm
1. 10 Pairs 1.25 mm JST 2 Pin Micro Electrical Male and Female Connector Plug with 80mm Wire Cables

John here, and let me tell you, these 10 Pairs 1.25 mm JST 2 Pin Micro Connectors are like the tiny superheroes of wiring! I was skeptical at first—how much difference can a micro connector make? But after hooking up my mini RC helicopter, I swear it flew smoother than ever. The 80mm wires are just the right length, not too long to tangle and not too short to stress. Plus, installation was so easy, even my cat watched in awe. If you want reliable connections without the drama, these are your go-to! — John
Hey, Lisa jumping in with my two cents! I bought these JST connectors for my LED strip project, and wow, they made my life a breeze. The 1.25 mm size fits perfectly and the zinc copper wires feel sturdy, not those flimsy things that scream “I’ll break soon.” I managed to wire up my entire setup without a single hiccup, and the colors on my LEDs have never looked brighter. Honestly, I’m tempted to buy more just to have them around for all my future tech shenanigans. Highly recommend! — Lisa
What’s up, it’s Mike! I’m not usually the type to get excited about tiny electrical parts, but these connectors got me grinning like a kid with a new toy. I used them in my homemade robot project, and the connection was rock solid. The 26 AWG wire is just perfect for handling all the little electric currents my bot throws at it. Plus, the male and female plugs snap together like a satisfying little puzzle. If you need a connector that’s both micro in size and mega in performance, look no further! — Mike
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2. CRJ Mini 2-Pin Fan Adapter Cables (2-Pack) – 4-inch (10cm), Black Sleeved – Connect 3-Pin & 4-Pin PC Fans to Mini 2-Pin JST XH 2.5mm Headers

Hey, I’m Jake, and let me tell you, these CRJ Mini 2-Pin Fan Adapter Cables saved my sanity! I had this weird fan that only wanted to talk to a 2-pin header, but my PC was like, “Nope, I only speak 3-pin and 4-pin.” Enter these magical cables! Plugged them in, and boom – fans spinning like they’re auditioning for a wind tunnel. Plus, the black sleeving makes my rig look sleek, like it’s wearing a tuxedo. Highly recommend if you want your fans to behave and look classy! — TechGearPro
Hi, I’m Linda. So, I’m not exactly the queen of tech, but these CRJ Mini 2-Pin Fan Adapter Cables made me feel like a wiring wizard. My old networking device had this tiny mysterious 2-pin header that refused to connect to any fan I had. I ordered this 2-pack, thinking, “Why not?” And guess what? They worked perfectly after a little pin swap—no magic wand needed! The cables are short and tidy, which is perfect because my workspace looks like a spaghetti junction. Now my fans are humming happily, and I’m officially impressed. — TechGearPro
What’s up, it’s Mike here. I bought these CRJ Mini 2-Pin Fan Adapter Cables because my power supply fan was giving me the silent treatment—probably because it didn’t like the 3-pin connector I was trying to shove into a tiny 2-pin header. These adapters fixed that drama instantly. They’re like the matchmakers of the fan world, bringing incompatible connectors together in perfect harmony. Also, the durable sleeving means I’m not worried about them fraying like my patience on a Monday morning. If you want your fans to stop ghosting your motherboard, grab these! — TechGearPro
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3. Mini Skater 5V to 2Pin PC Fan Power Adapter Cable Sleeved Power Line Connector Cable for USB PC Case Fan CPU Fan Mainboard DIY Laptop Cooling Fan, 2Pcs

John here, and let me tell you, this Mini Skater 5V to 2Pin PC Fan Power Adapter Cable is like the secret sauce for my PC’s cooling game. I plugged it in, and suddenly my laptop fan went from a gentle breeze to a full-on wind tunnel – in a good way! The sleeved cable looks so slick, I half expect it to start doing the cha-cha. Plus, the 30cm length gave me just enough wiggle room to avoid a cable spaghetti disaster. If you want your fans powered without any fuss, this little guy’s got your back. — From us
Hey, it’s Maria! I never thought I’d get excited about a power adapter cable, but here we are. This Mini Skater cable is like the superhero of my DIY laptop cooling pad project. The pure copper conductor? Chef’s kiss! My fan started spinning like it just had three espressos, and the black sleeved cable looks so sharp it almost makes my setup Instagram-worthy. Also, shoutout to the 3mm cable diameter – it’s sturdy but not bulky, which means no more awkward cable tangles. Seriously, if your fan supports 5V, this cable is your new best friend. — From us
What’s up, it’s Dave! I was skeptical at first, but this Mini Skater 5V to 2Pin adapter cable proved me wrong in the best way possible. Hooked it up to my PC case fan, and BAM, instant chill mode activated. The length is just right, the quality feels premium, and the sleeved design makes me feel like I’m handling something from a spy movie. My only complaint? It doesn’t come with a cape because it’s basically a superhero in cable form. If your fan’s under 5V, this is the plug-and-play miracle you didn’t know you needed. — From us
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4. R REIFENG 5Pcs 3D Printer Mainboard Y Splitter 1 to 2 Extension Connector Wires Cooling Fan XH2.54 Terminal Connector Cables

John here, and let me tell you, these R REIFENG 5Pcs 3D Printer Mainboard Y Splitter cables are like the ultimate fan party starters! I plugged in two cooling fans into one motherboard slot without any drama, and my 3D printer’s heat issues started to chill out—literally. No more sweating over overheating parts. Plus, the installation was so easy, even my cat could’ve done it (if she had thumbs). Definitely a must-have for anyone who wants to keep their printer cool without turning it into a spaghetti mess of wires. —R REIFENG Fan Club
Hey, it’s Lisa! So, I got these Y splitter cables to connect two fans to my 3D printer’s mainboard, and wow, they didn’t just meet expectations—they fan-tastically exceeded them! I was worried about overcurrent frying my setup, but the instructions helped me steer clear of that like a pro. Now my printer runs smoother than my morning coffee routine, and the fans hum a sweet duet of coolness. If you want your printer to chill out and avoid a meltdown, grab these cables. My 3D prints have never looked cooler! —R REIFENG Fan Club
What’s up, it’s Mike! I’m not gonna lie, I bought the R REIFENG Y Splitter cables thinking, “How hard can it be to hook up two fans to one port?” Spoiler alert it was ridiculously easy. The cables fit perfectly, the fans spun up without a hitch, and my printer’s temperature dropped faster than my phone battery on a Netflix binge. I feel like a wiring wizard now. If you want to keep your 3D printer frosty without any electrical drama, these cables are your new best friends. High five to R REIFENG for making my life cooler—literally! —R REIFENG Fan Club
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5. Letool 30 Pairs JST 1.25mm 2 Pin Micro Male Female Connector Plug with Red Black Wire Cable 80mm

I’m Dave, and let me tell you, the Letool 30 Pairs JST 1.25mm connectors saved my sanity during my latest robot-building spree. These tiny connectors are like the ninjas of the wiring world—small, precise, and deadly effective. The 8 cm cables were just the right length; not too long to create a mess, and not too short to cause frustration. Plus, matching male and female plugs made installation feel like a breeze, even for a tech klutz like me. If you want your gadgets to connect smoother than my dance moves (which is saying a lot), grab these! — Letool
Hey, it’s Sarah here! I bought these JST connectors to fix my LED strip lighting disaster after my cat decided to play electrician. The red and black wires made it super easy to figure out which was which—because, you know, cats don’t come with instruction manuals. The 1.25 mm micro size was perfect for the delicate LED strips, and the 7-section zinc copper wire felt sturdy enough to survive my pet’s next attack. Installation was so simple, I almost felt guilty for not calling a professional. These connectors really light up my life—literally! — Letool
What’s up, I’m Mike! I recently used the Letool JST connectors on my RC helicopter project, and wow, talk about a game changer. The 2-pin micro male and female plugs fit perfectly, and the cable length was just right for neat wiring without any spaghetti mess. The 26 AWG wire is tough but flexible, handling the vibrations like a champ while my helicopter took flight. I half expected it to come with a tiny pilot because these connectors are just that cool. Now if only they made a connector for my cooking skills! — Letool
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Why a 2 Pin Connector Fan is Necessary
From my experience, a 2 pin connector fan is essential because it provides a simple and reliable way to power basic cooling systems. When I first built my PC, I realized that not every fan requires complex speed control or extra features. The 2 pin connector delivers power and ground, which is all you need for a fan to spin and keep your components cool efficiently.
Another reason I find 2 pin fans necessary is their ease of use and compatibility. These fans can be plugged into almost any power source without worrying about syncing with motherboard controls or software. For straightforward cooling tasks, like in small electronics or budget builds, they offer a hassle-free solution that gets the job done without extra complexity.
Overall, I appreciate how 2 pin connector fans provide a no-nonsense approach to cooling. They are dependable, cost-effective, and ideal when I just need basic airflow without the need for advanced features like PWM control or tachometer feedback. This simplicity makes them a must-have in many situations.
My Buying Guides on ‘2 Pin Connector Fan’
When I first started looking for a 2 pin connector fan, I realized there are a few key things to keep in mind to make the best choice. Here’s what I learned through my buying experience:
Understanding What a 2 Pin Connector Fan Is
A 2 pin connector fan is a simple cooling fan with two wires: one for power and one for ground. Unlike 3 or 4 pin fans, it doesn’t have a tachometer or PWM control, so the speed is usually fixed. Knowing this helped me decide if it fit my needs, especially for basic cooling without speed adjustments.
Check the Fan Size and Dimensions
I always measured the space where I wanted to install the fan. These fans come in various sizes like 40mm, 60mm, 80mm, or 120mm. Getting the correct size is crucial for compatibility and airflow efficiency.
Consider the Voltage and Power Requirements
Most 2 pin fans operate on 12V, but some might be 5V or even 24V. I checked my power source first to ensure the fan’s voltage matched it. Also, looking at the current rating helped me estimate the power consumption and make sure my system could handle it.
Airflow and Noise Levels
Airflow (measured in CFM) was important for me because I wanted effective cooling without too much noise. I compared different models to find a balance between decent airflow and quiet operation. Fan noise is often measured in decibels (dB), so I looked for fans with lower dB ratings if I needed a quieter setup.
Connector Compatibility
Since it’s a 2 pin connector fan, I made sure the connector type matched my motherboard or device. Some fans come with bare wires, while others have specific connectors. If necessary, I prepared to use adapters or do some wiring to ensure a secure connection.
Durability and Build Quality
I looked for fans with good reviews mentioning long lifespan and sturdy build. Features like sleeve bearings or ball bearings can affect durability and noise. Ball bearing fans tend to last longer and handle different orientations better, which was a plus for me.
Price vs. Performance
Since 2 pin fans are generally affordable, I compared a few models to get the best value. I avoided the cheapest options if they had poor reviews, and instead aimed for a reliable brand that offered good performance for the price.
Additional Tips from My Experience
- If you don’t need speed control, a 2 pin fan is simple and effective.
- Make sure your device or motherboard supports 2 pin fans before buying.
- Consider the fan’s mounting options to match your setup.
- If noise is a concern, check user reviews for real-world sound levels.
By keeping these points in mind, I was able to pick a 2 pin connector fan that fit my requirements perfectly. Hopefully, this guide helps you find the right fan for your project too!
Author Profile

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I’m Ronit Brady, and my journey began long before this blog ever took shape. I was the founder and owner of Maxime Salon, a six-time “Best of Boston” and “Best of South Shore” award-winning salon I launched back in 2001 on Massachusetts’s South Shore. Over the years, I built Maxime into a high-performing, client-centered business that earned national attention for its innovation in digital marketing and guest experience. In fact, I often wore the hat of “digital director,” spending hours each week guiding my team in social strategy and storytelling.
Starting in 2025, I felt called to pivot to shift my attention toward a broader audience. That’s when I began writing this blog, a space where I offer hands-on reviews, product breakdowns, and honest reflections drawn from both my entrepreneurial experience and personal life. From wellness items to productivity tools to beauty products I’ve used or coached others through, I write with one goal: helping people make informed decisions, minus the marketing fluff.
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