Mr.Power 3.5 Postive Tip Power Supply Converter for Electro Harmonix EH DOD Guitar Pedals (2 pcs)
Bottom line: The Mr.Power 3.5 Postive Tip Power Supply Converter ($6.99 on Amazon as of 2026-10-06): Converts 5.5x2.1mm barrel to 3.5mm positive-tip plug; main trade-off: short 12cm length limits placement on larger boards.
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
- ✓ Converts 5.5x2.1mm barrel to 3.5mm positive-tip plug
- ✓ Powers older Electro-Harmonix and DOD pedals
- ✓ Works with 9V negative-center supplies like BOSS PSA
- ✓ Two 12cm cables per pack for backup or dual rigs
Cons
- ✗ Short 12cm length limits placement on larger boards
- ✗ Positive-tip 3.5mm pedals only; not for other jacks
- ✗ Needs a separate 9V power supply, not included
- ✗ Fixed 5.5x2.1mm input; no other barrel sizes
SpecPicks Verdict
SpecPicks scored Mr.Power 3.5 Postive Tip Power Supply Converter using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Mr.Power's power supplies 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 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
- Convert 5.5mmx2.1mm to 3.5mm(1/8″), As pictures
- For power Electro-Harmonix older DOD, and other pedals that require a positive tip 3.5mm (1/8″) plug.
- Works with 9V 5.5mmx2.1mm negative center power supply, such as for BOSS PSA.
- Length: 12cm
- Product: 2pcs Cable
Full Specifications
| Brand | Mr.Power |
|---|---|
| Color | Black |
| Length | 12cm |
| Current | DC |
| Product | 2pcs Cable |
| Wattage | 10 watts |
| Portable | Yes |
| Power Plug | Type F - 2 pin (German) |
| Unit Count | 2.0 Count |
| Form Factor | Compact |
| Model Number | 118017x2 |
| Power Source | Corded Electric |
| Input Voltage | 9 Volts |
| Mounting Type | Desktop Mount |
| Built-In Media | 2 power cables |
| Connector Type | 3.5mm (1/8') with positive tip |
| Output Current | 100 Milliamps |
| Output Voltage | 9 Volts |
| Mfr Part Number | QK-ke-69 |
| Number of Items | 2 |
Ready to buy?
Mr.Power 3.5 Postive Tip Power Supply Converter for Electro Harmonix EH DOD Guitar Pedals (2 pcs) 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
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best 1440p Gaming GPUs in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
More reviews from the SpecPicks archive
Browse all reviews →- Google's 'Frozen v2' Chip Bakes Gemini Into Silicon: What It Means for Local Rigs
- What We Lost When LAN Parties Died: A 2026 Editorial
- Steam Deck: Linux's Trojan Horse for PC Gamers
- Anker's Thus Chip Claims 150x AI Boost: No Benchmarks Yet
- 8BitDo Pro 2 vs DualSense: Best Controller for PC Gaming in 2026
- Best CPU Cooler for Ryzen 7 5800X Overclocking (2026)
- On-Device AI Keyboards: What a Sub-2GB LLM Needs to Run Local
- Best PC Cooling for High-TDP Builds in 2026
- Best Budget SSD for Gaming and Local-LLM Storage in 2026
- Building a Period-Correct 2002 GeForce 4 Ti + Pentium 4 Northwood Win98/XP Dual-Boot
- Minimal Raspberry Pi 5 Case: Friction-Fit 3D Printing Guide
- Best Raspberry Pi for Klipper in 2026: Pi 4 8GB vs Alternatives
- How to run Qwen 3 32B on Apple M4 Pro
- Hidden Code in Claude Code Flagged Chinese Users: What It Means for Local-LLM Privacy
- GameSir G7 SE vs DualSense: Best Controller for PC
- GPU VRAM Guide: Running a 5GB TTS Model Locally
- Is the RTX 3060 12GB Still Worth It for 1440p Gaming in 2026?
- KOORUI 27" 4K vs Samsung Odyssey 27" 4K for PS5 and PC Gaming
- LLM-Driven Driver Install on Windows 98, 2000, and XP: Vision-LLM Walkthroughs from a 4-PC Retro Fleet
- Best Budget SSDs for Retro and Homelab Builds in 2026
- AMD Challenges Nvidia DGX Spark with $3,999 Ryzen AI Halo
- Best Wireless Gaming Controllers for PC and Console in 2026
- Coral TPU for LLM Inference: What the Specs Really Say
- DeepSeek V4.1-Flash on One RTX 3060 12GB vs Two: Which Local Agent Rig Wins in 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