ELFJMZP
PC Molex Large 4-Pin Female to Dual 5-Pin Male DC 5521 Extension Cable 50cm Pure Copper 12V PSU Adapter Cable for Case Fans/LED Strips/Water Pump Power Supply
Bottom line: The PC Molex Large 4-Pin Female to Dual 5-Pin Male DC 5521 Extension is a specs-and-price decision rather than a crowd-consensus one in the power supplies & cables category, priced around $11.99 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by ELFJMZP's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
Product SummaryThis PC Molex 4-Pin Female to Dual 5-Pin Male DC 5521 Power Extension Cable is specifically designed to address power supply needs for 12V devices within computer cases. Featuring 18AWG pure copper conductors for stable high-current transmission, its dual-output design simultaneously powers two devices. The 50cm cable length accommodates flexible routing. It offers broad compatibility with chassis fans, LED light strips, water pumps, and similar devices, making it an ideal choice for DIY builds, equipment upgrades, and power expansion. The cable features durable red and black…
SpecPicks Verdict
SpecPicks scored PC Molex Large 4-Pin Female to Dual 5-Pin Male DC 5521 Extension… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. ELFJMZP'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.
Key Features
- 1. Pure copper 18AWG core for stable high-current transmission This Molex 4-Pin to DC 5.5x2.1mm extension cable features an 18AWG high-purity copper core, supporting stable 12V high-current transmission. It effortlessly powers devices like case fans, LED strips, and water pumps while minimizing voltage loss and heat generation, ensuring long-term stable operation.
- 2. Dual-Port Design Solves Interface Shortage Challenges This Molex 4-Pin Female to DC Male Extension Cable delivers two DC 5.5×2.1mm male outputs from a single cable, enabling simultaneous power supply to two devices. Eliminating the need for additional adapters, it effectively saves chassis space and costs, making it a practical accessory for DIY builds and equipment upgrades.
- 3. Standard Interface, Wide Compatibility The Molex large 4-pin female connector is compatible with the large 4-pin interface of ATX power supplies. The DC 5.5×2.1mm male connector fits most 12V DC devices, including case cooling fans, RGB light strips, water cooling pumps, surveillance cameras, and more.
- 4. 50cm cable length for flexible routing This large 4-pin splitter DC cable features a 50cm length, allowing you to flexibly plan your internal case wiring. Even when devices are installed farther apart, connections remain effortless, eliminating the inconvenience of overly short cables.
- 5. Durable Design for Long-Term Reliability Featuring dual-color red and black insulation, the cables resist pulling and bending. Reinforced connectors ensure reliable plug-and-play performance without damage, withstanding frequent use during daily system builds and equipment maintenance.
Full Specifications
| Brand | ELFJMZP |
|---|---|
| Color | Red + Black |
| Voltage | 12 |
| Wattage | 60 watts |
| Amperage | 5 A |
| Unit Count | 1 Count |
| Item Length | 19.7 inches |
| Compatibility | PC |
| Input Current | 5 A |
| Mfr Part Number | EP000223 |
| Connector Gender | Male-to-Female |
| Warranty Description | NC |
Ready to buy?
PC Molex Large 4-Pin Female to Dual 5-Pin Male DC 5521 Extension Cable 50cm Pure Copper 12V PSU Adapter Cable for Case Fans/LED Strips/Water Pump Power Supply 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.
Related Power Supplies & Cables
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best Retro Handhelds in 2026 — From $35 to $500
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- How to Build a Windows 98 Retro PC in 2026
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best 1440p Gaming GPUs in 2026
More reviews from the SpecPicks archive
Browse all reviews →- Best Buy Cuts $900 Off an Asus 64GB Gaming Laptop — Is a Desktop Smarter?
- Best Plug-and-Play Retro & Budget Consoles in 2026: 5 Picks Ranked
- Best USB Microphone for Streaming Under $150 in 2026
- Best SATA SSDs for Gaming and Retro PC Builds in 2026
- Best Mouse Pads for Competitive FPS Gaming in 2026
- News: Mistral Enters Robotics With Robostral Navigate 8B
- OpenAI's Codex Price War: When Local Coding on an RTX 3060 Wins
- CUDA 13.3 and the RTX 3060: What Changes for Local LLM Inference
- Mistral Medium 3.5 Dense Local Inference: Hardware Tiers from 24GB to 192GB
- Qwen3.6-27B at Q4_K_M for Agentic Coding: Is the Quant Safe on a 12GB RTX 3060?
- Qwen3.6 the Right Way: Run It Through a Pi Coding Agent
- RTX 3060 12GB vs Ryzen 9 3900X for Qwen2.5 14B: GPU or CPU in 2026?
- Voodoo 5 6000 Verdict: What the Lab Established and Tests Next
- Cactus Hybrid Router: Gemma4-2B Local + Gemini Fallback
- CompactFlash to IDE Imaging for Win98: Troubleshooting Common Failures
- Best CPU Under $300 for a 1080p Gaming Build (2026)
- Aider vs Cline vs Continue.dev on a Local RTX 3060 (2026)
- Best AM4 CPU for Budget Gaming and Local AI in 2026
- Best GPU for Ryzen 7 9800X3D in 2026: Pairing Guide
- Raspberry Pi Projects for Home Automation in 2025
- Claude Fable 5 Burns 117k Tokens/Task: Can a Local RTX 3060 Keep Up?
- Ryzen 5 2600 vs Ryzen 5 5600G for CPU-Only Llama 3.2 3B in 2026
- 2025 Local LLM Leaderboard: Best AMD GPUs Ranked
- 34-Inch Ultrawide vs 27-Inch 4K for Coding and Gaming (2026)
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090