What are the alternatives to the Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable?

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LONELY BINARY

Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable

Name: Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable
Brand: LONELY BINARY
SKU: B0FXL6DLB9
Price: 12.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-07

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$12.99

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*Price sourced from Amazon.com. Last updated 2026-08-22. Price and availability subject to change.

Bottom line: The Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable is a niche pick — read recent reviews before buying in the games & cartridges category, priced around $12.99. Compare close alternatives before committing.

Lonely Binary 3-Pack Breadboard Power Supply ModulesThe Lonely Binary Breadboard Power Supply Module is a compact power adapter for electronics prototyping on solderless breadboards. This 3-pack plugs directly into the power rails of your breadboard (sold separately) to provide voltage for your circuits, reducing wiring and external adapters. Suitable for hobbyists, students, and makers working on prototypes, testing, or STEM projects with boards like Arduino, Raspberry Pi, Pico W, and ESP32.Key FeaturesSwitchable Voltage Outputs:Select between 3.3V and 5V with a slide switch. Built-in 500mA…

SpecPicks Verdict

SpecPicks scored Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the games & cartridges category. LONELY BINARY's games & cartridges lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for games & cartridges 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by LONELY BINARY's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

【3.3V/5V SWITCHABLE OUTPUT】Toggle between 3.3V and 5V with a slide switch, up to 500mA per module (PPTC protected) — for powering Arduino, Raspberry Pi, Pico W, ESP32, and other microcontrollers without extra adapters.
【BUILT-IN SAFETY PROTECTION】PPTC resettable fuses limit current to 500mA per module to help prevent overloads and short circuits — suitable for beginners and experienced makers working on STEM projects.
【USB TYPE-C CONNECTIVITY】USB Type-C input (5V DC) for power from laptops, power banks, or USB hubs — reduces wiring for portable prototyping setups.
【LED POWER INDICATORS】Dual LEDs (red for 5V, blue for 3.3V) show active voltage status for safe operation and quick troubleshooting during DIY builds.
【COMPACT 3-PACK, FOR LOW-POWER LOADS】Plugs directly into standard solderless breadboard power rails. Suitable for logic circuits, sensors, displays, and single dev boards (up to 500mA). For high-current loads like motors or large LED arrays, use a dedicated supply. Pack of 3. Note orientation to avoid reversed polarity.
【RELIABLE VOLTAGE STABILITY】Measured outputs of ~3.27V (3.3V nominal) and ~4.92V (5V nominal) with minimal drop; great for quick prototypes, though note orientation to avoid reversed polarity.

Full Specifications

Brand	LONELY BINARY
Wattage	7 watts
Model Name	3.3V/5V Switchable Breadboard Power Supply
Form Factor	Breadboard
Connectivity	USB-C
Model Number	Switchable Breadboard Power Supply
Compatibility	Switch
Built-In Media	3xBreadboard Power Supply Modules
Connector Type	Type C
Cooling Method	Air
Output Wattage	5 watts
Item Dimensions	0.65 x 2.09 x 0.79 inches
Number of Items	3
Number of Packs	3
Compatible Devices	400 Point Solderless Breadboard, 830 Point Solderless Breadboard, Breadboard , full size breadboard, half size breadboard.
Warranty Description	1 YEAR
Maximum Input Voltage	5 volts_of_direct_current
Minimum Input Voltage	5 volts_of_direct_current
Item dimensions L x W x H	0.65 x 2.09 x 0.79 inches
System Bus Connector Type	Type C

Ready to buy?

Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-22. Price and availability subject to change.