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Updated: 17 Apr 2026

10 Best Parallel Adapters

#1 Best Pick
22mm x 1" Parallel Male Adapter (Available in 8mm, 10mm, 12mm, 15mm, 22mm, 28mm, 35mm, 42mm, 54mm, 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, 1 inch, 1 1/4 inch, 1 1/2 inch, 2" BSP)

22mm x 1" Parallel Male Adapter (Available in 8mm, 10mm, 12mm, 15mm, 22mm, 28mm, 35mm, 42mm, 54mm, 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, 1 inch, 1 1/4 inch, 1 1/2 inch, 2" BSP)

Brand: ODSUPPLIES
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  • IMPORTANT SIZING NOTE - Most plumbing products are measured using BSP thread dimensions which measure 1/4 inch larger than that stated, therefore this 1 Inch BSP thread actually measures 1 1/4 Inch in diameter. If your thread measures 1 Inch in diameter then you require the 3/4 Inch version of this product
  • This listing is for a Pack of 1
  • Brass fittings are compatible with various types of pipes, including copper, PVC, and PEX, providing flexibility in plumbing system design and installation.
  • Brass fittings are relatively easy to install, requiring simple tools such as wrenches or pipe wrenches for tightening, reducing installation time and labor costs.
  • WRAS Approved
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#2 Best Value
cablecc DB25pin DSUB Parallel LPT AES/EBU DB Male 90 Degree Down Angled Extension Adapter with Male Nut and Female Screw

cablecc DB25pin DSUB Parallel LPT AES/EBU DB Male 90 Degree Down Angled Extension Adapter with Male Nut and Female Screw

Brand: cablecc
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  • D-sub connectors are used to connect external devices to a computer. They are an older connection method, but some parallel LPT cards and modern computers still contain them. D-Sub connectors are simple yet popular input output connectors used in various applications in telecommunications, data, consumer, industrial, military, instrumentation and medical.
  • Commonly referred to as "ZollDB connectors" or "ZollD-Subs,Zoll", these compact connectors owe their name to their signature D-shaped shielding, which protects both sides of the connector from mechanical and electromagnetic interference. The asymmetrical shape of the shield also ensures that it is only connected to the appropriate plug in the correct orientation.
  • The 25-pin D-Sub male or DB25 is best known for its use in digital audio and multi-channel recording equipment applications. However, the different use of both female and male DB25 connector products has expanded to more demanding applications where a secure, sometimes waterproof connection and signal transmission is required in strong vibration and harsh environments.
  • The 25 pin connector with nuts and the female with screws. 25 Pin Male to Female Density Adapter Two row contacts, 90 degree angle adapter.
  • The angled type allows connection to a female connector even when space around the connector is limited.
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#3 Budget Pick
xiwai DB25pin LPT AES/EBU Male Nut to Female Screw Extension Adapter Serial Adapter DB Male DSUB Parallel Up 90 Degree Angled

xiwai DB25pin LPT AES/EBU Male Nut to Female Screw Extension Adapter Serial Adapter DB Male DSUB Parallel Up 90 Degree Angled

Brand: xiwai
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  • The 25 pin connector with nuts and the female with screws. 25 Pin Male to Female Density Adapter Two row contacts, 90 degree angle adapter.
  • The angled type allows connection to a female connector even when space around the connector is limited.
  • D-sub connectors are used to connect external devices to a computer. They are an older connection method, but some parallel LPT cards and modern computers still contain them. D-Sub connectors are simple yet popular input output connectors used in various applications in telecommunications, data, consumer, industrial, military, instrumentation and medical.
  • Commonly referred to as "ZollDB connectors" or "ZollD-Subs,Zoll", these compact connectors owe their name to their signature D-shaped shielding, which protects both sides of the connector from mechanical and electromagnetic interference. The asymmetrical shape of the shield also ensures that it is only connected to the appropriate plug in the correct orientation.
  • The 25 pin d-sub connector, or DB25, is most commonly known for its use in digital audio and multi-channel applications for recording devices. However, the varying use for both female and male DB25 connector products has expanded to include more rigorous applications where a secure, sometimes waterproof connection and transfer of signal is required amidst high vibration and harsh environments.
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#4 Top Choice
EMSea 2pcs 1 Female to 2 Male Parallel Adapters XT90 Parallel Female to Male Plugs Connector Adapter for Quadcopters Multirotors Lipo Battery

EMSea 2pcs 1 Female to 2 Male Parallel Adapters XT90 Parallel Female to Male Plugs Connector Adapter for Quadcopters Multirotors Lipo Battery

Brand: EMSea
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#5 Popular Choice
HAAMNING7 4 Pcs T Parallel Connector T Plug No Wire Adapter 1 Female to 2 Male 1 Male to 2 Female Plug Parallel Battery Connector, for RC Battery/Quadcopter/ESC

HAAMNING7 4 Pcs T Parallel Connector T Plug No Wire Adapter 1 Female to 2 Male 1 Male to 2 Female Plug Parallel Battery Connector, for RC Battery/Quadcopter/ESC

Brand: HAAMNING7
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  • Widely Used: T Plug No Wires Connector are widely used as safe and reliable power connectors, for electric models, RC cars, remote control aircraft, remote control car.
  • T Plug Parallel Adapter: Suitable for compactly put together batteries, suitable for charging 2 batteries at a time. Use two ESCs to use one battery at the same time, keeping the same voltage. Fir for remote control aircraft, remote control toy car, RC battery, etc.
  • Efficient Power Transfer: With its high current-carrying capacity and low-resistance design, the T Plug Parallel Connector is able to efficiently transfer power from the power source to the load, reducing energy loss and increasing system efficiency.
  • Premium Material: It is made of high-quality copper, plastic. is made of high-strength, high-temperature-resistant insulating material, ensuring the stability and durability of the connector in harsh environments. Good insulation, good conductivity, wear resistance, corrosion-resistant, long service life.
  • Easy Installation: Which are tightly and firmly connected between the pins and the sockets, making plugging and unplugging operations easy and fast, just plug it in and use, very convenient.
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#6 Top Pick
Solar Panel Connector - Y Branch Parallel Adapter in Pair | Wire Connector, Solar Cable for Charging, Air Conditioner, and Heating Borato

Solar Panel Connector - Y Branch Parallel Adapter in Pair | Wire Connector, Solar Cable for Charging, Air Conditioner, and Heating Borato

Brand: BORATO
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  • ↩Seamless Panel Combination: Innovative connector with 1 female to 2 male (F/MM) solar connectors and 1 male to 2 female ( /FF) solar connectors for effortlessly combining 2 panels.
  • ↩Broad Application: With a versatile compatibility of 14-10AWG (1.5mm² - 6mm²), these solar connectors are perfect for a range of solar cables. They are widely used in solar panel systems, RVs, boats, and other outdoor settings.
  • ↩Effortless Installation: Our solar connectors boast easy installation and a solid connection that can be established and disconnected by hand, without tools. The connectors won't fall off easily, ensuring a hassle-free and secure solar panel syste setup.
  • ↩Enhanced Protection: The durable Solar Connectors resist wind, increasing the cable's enforceability and feature a double seal ring design for IP67 waterproof rating. They're UL94 V-0 flame retardant and built tough for outdoor environments.
  • ↩Maximum Protection: These solar have a nominal voltage of 1000V DC and nominal current of 30A, and can endure temperature extremes ranging from -40 to +85. They keep your solar PV power generation equipment stable even in the toughest conditions.
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#7 Top Pick
DSLRKIT 3AA(LR6) to D Size Parallel Battery Convertor Adapter Holder (Pack of 4)

DSLRKIT 3AA(LR6) to D Size Parallel Battery Convertor Adapter Holder (Pack of 4)

Brand: DSLRKIT
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  • Convert any AA battery to a D battery
  • Option to use 1 AA,2 AA or use 3 AA for more capacity
  • This set includes 4PCS adapters
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#8 Top Pick
ECSiNG 4Pcs 25 Pin Female to Female Parallel DSUB Gender Changer for Printer Scanner

ECSiNG 4Pcs 25 Pin Female to Female Parallel DSUB Gender Changer for Printer Scanner

Brand: ECSiNG
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  • It can be used in a variety of office equipment, industrial equipment and data transmission interfaces with strong compatibility.
  • Female-to-female design, compatible with standard 25-pin parallel port interface, ensuring perfect match with printers, scanners and other devices.
  • Plug and play, no additional drivers or tools required, quick connection to printers, scanners and other devices.
  • The outer casing is made of metal to enhance signal transmission stability and oxidation resistance.
  • Provides 4 adapters to meet multiple device connection or backup needs.
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#9 Top Pick
RIIEYOCA DC 8mm Y Branch Parallel Adapter Cable, 3.2FT 14AWG DC8mm 1 Male to 2 Female Solar Panel Power Cable,with DC7909 Male Female Converter,for Portable Power Station Solar Panel(1m/3ft)

RIIEYOCA DC 8mm Y Branch Parallel Adapter Cable, 3.2FT 14AWG DC8mm 1 Male to 2 Female Solar Panel Power Cable,with DC7909 Male Female Converter,for Portable Power Station Solar Panel(1m/3ft)

Brand: RIIEYOCA
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  • Save Time DC 8mm Y branch parallel adapter cable,combine 2 solar panels that have 8mm male plugs output into one single output, charge your portable power station with DC8mm connector,reducing charging time.
  • Save Time DC 8mm Y branch parallel adapter cable,combine 2 solar panels that have 8mm male plugs output into one single output, charge y
  • Safe and Durable DC 8mm Y branch parallel adapter cable,double PVC jacket,excellent heat resistance and insulation.
  • Plug and Play Easy to install,just plug it in and use it,no need for other operations,the best choice for charging your portable power station and solar generator.
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#10 Top Pick
EMSea 2pcs 1 Male to 2 Female Parallel Adapters XT90 Parallel Male to Female Plugs Connector Adapter for Quadcopters Multirotors Lipo Battery

EMSea 2pcs 1 Male to 2 Female Parallel Adapters XT90 Parallel Male to Female Plugs Connector Adapter for Quadcopters Multirotors Lipo Battery

Brand: EMSea
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  • Versatile Compatibility: Compatible with Lipo batteries, designed specifically for efficient parallel connections.
  • Material: Made from durable nylon, ensuring long-lasting performance and resistance to wear, with a reliable and sturdy design.
  • Parallel Connection: This adapter allows you to connect 1 male XT90 connector to 2 female XT90 connectors, convert two batteries in parallel connection for double capacity.
  • Compact and Lightweight: The adapter is compact and lightweight, offering a great alternative to larger, heavier adapters. Ideal for compact applications.
  • Easy to Use: No wiring required, simply plug in and enjoy increased use time with dual-battery setups. Perfect for RC quadcopters multirotors and other Rc models.
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