USB to 5.5mm / 2.1mm DC Booster Cable - 12V Output
USB-A cable with integrated boost converter that steps up USB 5V to 12VDC on a center-positive 2.1mm barrel jack. Useful for powering 12V devices from a USB port or power bank.
USB-A cable with integrated boost converter that steps up USB 5V to 12VDC on a center-positive 2.1mm barrel jack. Useful for powering 12V devices from a USB port or power bank.
USB plug input; Adafruit states the booster cable is powered from a USB port or USB battery pack and measurements use a steady 5V input supply.
2.1mm centre-positive DC barrel output for powering 12V devices; Adafruit states the DC barrel plug is centre-positive.
Return/ground for the 2.1mm DC barrel output, paired with the centre-positive barrel plug.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| USB 5V input | power | USB plug input; Adafruit states the booster cable is powered from a USB port or USB battery pack and measurements use a steady 5V input supply. | 5V input | |
| DC barrel centre pin | centre contact | power | 2.1mm centre-positive DC barrel output for powering 12V devices; Adafruit states the DC barrel plug is centre-positive. | 12V output, rated 500mA by Adafruit |
| DC barrel sleeve | outer sleeve | ground | Return/ground for the 2.1mm DC barrel output, paired with the centre-positive barrel plug. | 0V return |
3.3 V · 5 V
Adafruit lists its single-cell LiPo and Li-ion packs as 3.7 V nominal, with output reaching 4.2 V when fully charged.
Module pins: USB 5V input, DC barrel centre pin, DC barrel sleeve. Schematik maps them to your board in the app.
9V alkaline cells, CR2032 coin cells, 3.7V LiPo packs (1000–1200mAh), 7.4V 2S LiPo, 18650 Li-ion holders (1–6 cells), AA/AAA holders in every configuration, and snap leads with barrel adapters.
1-Way 18650 Battery Holder visual preview1-Way 18650 Battery Holder
18650 Battery Holder Case - 2 Slot with Switch visual preview18650 Battery Holder Case - 2 Slot with Switch
18650 Battery Holder Case - 4 Slot visual preview18650 Battery Holder Case - 4 Slot
18650 Battery Protection Module (12V 10A) visual preview18650 Battery Protection Module (12V 10A)
2 x 18650 Battery Holder with DC2.1 Power Jack visual preview2 x 18650 Battery Holder with DC2.1 Power Jack
2 x AA Battery Holder with Knife Switch visual preview2 x AA Battery Holder with Knife Switch
2 x AA Battery Holder with On/Off Switch & JST PH Connector visual preview2 x AA Battery Holder with On/Off Switch & JST PH Connector
2 x AA Open Battery Holder with JST PH Connector visual preview2 x AA Open Battery Holder with JST PH Connector
2 x AAA Battery Holder with On/Off Switch & JST PH Connector visual preview2 x AAA Battery Holder with On/Off Switch & JST PH Connector
2 x AAA Battery Holder with Switch visual preview2 x AAA Battery Holder with Switch
2 x AAA Open Battery Holder with JST PH Connector visual preview2 x AAA Open Battery Holder with JST PH Connector
2 x CR2032 Coin Cell Battery Holder - 6V output - On/Off switch visual preview2 x CR2032 Coin Cell Battery Holder - 6V output - On/Off switch
7.4V Lipo Battery Charger visual preview
Adafruit LC709203F LiPoly / LiIon Fuel Gauge and Battery Monitor visual preview
Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy visual preview
Adafruit MAX17048 LiPoly / LiIon Fuel Gauge and Battery Monitor visual previewSingle-cell LiPo chargers (TP4056, MicroUSB/Type-C modules), charger/booster combos (PowerBoost 500/1000, Lipo Rider Plus 5V/2.4A), I2C fuel gauges (MAX17048, LC709203F) and Qi wireless charging coils.
Power · Chargers & fuel gauges · 46 parts
Buck-Boost DC/DC Converter - 8-36V to 12V/6A visual preview
Wall Adapter Power Supply - 9VDC, 650mA (Barrel Jack) visual preview
10W 4 USB Power Adapter visual preview
120W DC-DC Converter 12V@10A visual previewWall adapters (5V–24V), adjustable and fixed buck/boost/buck-boost converters (MT3608, LM2596-class), USB-C PD triggers (HUSB238), breadboard supplies, DIN-rail units and passive barrel-jack adapters.
Power · Supplies & regulators · 144 parts
3.8 / 1.3mm or 3.5 / 1.1mm to 5.5 / 2.1mm DC Jack Adapter Cable visual preview
Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board visual preview
Adafruit bq25185 USB / DC / Solar Lithium Ion/Polymer Charger visual preview
Arc 10W Solar Charger Kit incl. V25 6400mAh Powerbank visual previewSolar panels from 1.5V 250mA flexible film to 18V 10W polysilicon, MPPT solar power managers (DFRobot 5V and 9V/12V/18V, Waveshare 6V–24V), bq25185 charger boards and LTC3588 energy-harvesting breakouts.
Power · Solar power · 28 parts
1.75mm PLA (1kg) - Black visual preview
1.75mm PLA (1kg) - Gold visual preview
1.75mm PLA (1kg) - Green visual preview
1.75mm PLA (1kg) - Natural visual previewDFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.
Tools & prototyping · 3D printing · 53 parts