Gavemi
Gavemi Molex to 4 Pin Fan Adapter
Bottom line: The Gavemi Molex to 4 Pin Fan Adapter ($5.99 on Amazon as of 2026-10-06): Powers up to 4 case fans from a single Molex connector; main trade-off: no PWM signal, so fan speed cannot be controlled.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Powers up to 4 case fans from a single Molex connector
- ✓ Works with both 3-pin and 4-pin 12V case fans
- ✓ 33cm (13 in) cable reaches fans across most mid-tower cases
- ✓ Black sleeving blends into all-black builds
- ✓ Frees up limited motherboard fan headers in older systems
Cons
- ✗ No PWM signal, so fan speed cannot be controlled
- ✗ Only 2 active pins, so fans do not report RPM to the motherboard
- ✗ Needs a spare Molex lead from the power supply
- ✗ Fans get the full Molex 12V with no speed control
Manufacturer description
The Gavemi Molex to 4 Pin Fan Adapter lets you power up to four PC case fans from a single Molex connector. That frees you from relying on a limited number of motherboard fan headers. It works with 3-pin and 4-pin 12V chassis fans, so you can mix fan types in one build. The splitter has one 4-pin Molex plug on one end and four fan connectors on the other. The cable runs 33cm (13 inches), and its black sleeving keeps it tidy in an all-black build. It works well in older cases, retro PC builds and budget systems where the motherboard has only one or two fan headers but the power supply still…
SpecPicks Verdict
SpecPicks scored Gavemi Molex to 4 Pin Fan Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Gavemi's power supplies & cables lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this Molex fan splitter work with my 4-pin PWM fans?
Yes, 4-pin fans plug in and spin. Each connector has only 2 active pins (power and ground), though, so there is no PWM signal and the fan speed cannot be controlled.
How many fans can I connect to this adapter?
Up to four. The cable has one 4-pin Molex input and four fan connectors, and it works with 3-pin and 4-pin 12V case fans.
Can my motherboard read fan RPM through this cable?
No. The fan connectors carry only power and ground, with no tachometer wire, so BIOS and monitoring software will not see fan speed for fans on this splitter.
How long is the cable?
The splitter is 33cm (13 inches) long and has black sleeving. Measure the distance from your spare Molex lead to your fan positions before buying.
Can I use this in an older or retro PC build?
Yes. It only needs a standard 4-pin Molex connector from the power supply, so it suits older systems that have few or no motherboard fan headers. Check the listing for current warranty terms.
Key Features
- Molex to 4 pin fan adapter supports 3Pin or 4Pin PC cooling fans.
- Powers up to four PC chassis fans via molex connectors to provide internal chassis cooling.
- Connector A: 4 pin molex connector (actual 2 pin) B: 4pcs 4 pin fan connector(actual 2 pin)
- Cable length is 33cm / 13inch, quality high density black sleeving for all black appearance.
- This PC fan splitter cable actually has only two pins and is compatible with 3-pin and 4-pin computer case fans (note that there is no PWM function, only power the fan)
Full Specifications
| Brand | Gavemi |
|---|---|
| Color | Black |
| Model | GM-Molex-fan/A4 |
| Cable Type | molex |
| Item Shape | Round |
| Unit Count | 1.0 Count |
| Connector A | 4 pin molex connector (actual 2 pin) B: 4pcs 4 pin fan connector(actual 2 pin) |
| Part Number | B/3 |
| Compatibility | PC |
| Connector Type | Molex to 4 Pin Fan Adapter |
| Number of Pins | 2 |
| Maximum Voltage | 12 Volts (DC) |
| Number of Items | 1 |
| Special Feature | for 3 Pin 4 Pin PC Case |
| Connector Gender | molex to fan cable |
| Compatible Devices | for 3 Pin 4 Pin PC Case |
| Included Components | Molex to 4 Pin Fan Adapter Cable |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Connectivity Technology | molex to fan |
| Recommended Uses For Product | PC cooling |
| Full listing title | Molex to 4 Pin Fan Adapter for 3 Pin 4 Pin PC Case 12V Cooling Fans Molex to Fan Splitter Power Cable, 13 inch (1 Pack(1 to 4)) |
Ready to buy?
Molex to 4 Pin Fan Adapter for 3 Pin 4 Pin PC Case 12V Cooling Fans Molex to Fan Splitter Power Cable, 13 inch (1 Pack(1 to 4)) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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