BiXPower C27 Dell Laptop DC Power Connector Tip – 7.4 x 5.08mm with Center Pin and Built-In Identification Chip
The BiXPower C27 (CNT-C27)
is a specialized right-angle DC power connector
tip designed for compatible Dell laptop computers.
It converts a standard
5.5 x 2.5mm male DC power plug
into a 7.4 x 5.08mm male connector
with center pin.
Unlike ordinary connector adapters,
the C27 includes a
built-in identification microchip
designed to support Dell laptop
power-adapter recognition when used
with a compatible external power source.
Dell Laptop Connector
7.4 x 5.08mm Male
Center Pin
Built-In ID Chip
5.5 x 2.5mm Female Input
Right-Angle Design
Important: Not Compatible with HP Laptop Computers
The BiXPower C27 is NOT compatible
with HP laptop computers.
Although the C27 has the same
7.4 x 5.08mm physical connector size
as certain HP laptop power adapters,
its built-in identification circuitry
is designed for Dell applications.
For compatible HP/Compaq laptops,
please use the BiXPower C24 connector
(CNT-C24) instead.
View BiXPower C24 Connector for HP/Compaq
Product Overview
C27 right-angle DC power connector tip
Many Dell laptop computers use
a DC power connector with a center contact
that participates in power-adapter identification.
A simple physical connector conversion
may not provide the identification signal
expected by the computer.
The BiXPower C27 includes
an identification microchip intended
to help compatible Dell laptops recognize
an external power adapter or rechargeable
battery system.
When used with a suitable power source,
the C27 is designed to support
normal laptop operation and internal
battery charging.
Actual operation depends on
the laptop model and power requirements.
Key Features and Benefits
-
Designed for Dell laptops:
Specialized connector tip for compatible
Dell laptop power inputs.
-
Built-in identification chip:
Designed to support Dell power-adapter
recognition and reduce adapter identification
warnings on compatible systems.
-
7.4 x 5.08mm male connector:
Includes a center pin for compatible
Dell laptop DC power inputs.
-
5.5 x 2.5mm female input:
Attaches to a compatible male DC power
plug on a battery or power adapter cable.
-
Right-angle design:
Provides an L-shaped connector arrangement.
-
Removable and interchangeable:
Can be installed or removed without
cutting or soldering cables.
-
External power compatibility:
Designed for use with suitable
rechargeable batteries and universal
DC power adapters.
Technical Specifications
| Model |
BiXPower CNT-C27 |
| Product Type |
Dell laptop DC power connector adapter tip |
| Input Connector |
5.5mm outside diameter x 2.5mm inside diameter female DC jack |
| Output Connector |
7.4mm outside diameter x 5.08mm inside diameter male DC barrel plug |
| Center Pin |
Yes |
| Built-In Electronics |
Dell-compatible power-adapter identification microchip |
| Male Barrel Length |
Approximately 12.65mm |
| Connector Orientation |
90-degree / right-angle |
| Voltage Conversion |
None |
| Recommended Laptop Power |
Not recommended for Dell laptops requiring more than 120W |
| Compatible Computers |
Selected Dell laptop computers requiring this connector and identification function |
| HP Laptop Compatibility |
Not compatible – use CNT-C24 for compatible HP models |
| Package Contents |
1 x BiXPower C27 connector tip |
Connector Dimensions and Detailed Images
The C27 male connector has a
7.4mm outside diameter (OD)
and 5.08mm inside diameter (ID),
with a center pin.
The opposite end accepts a standard
5.5 x 2.5mm male DC power plug.
C27 connector dimensions and right-angle configuration
7.4 x 5.08mm male connector with center pin
5.5 x 2.5mm female input jack
How to Connect the BiXPower C27
The C27 is designed to connect to
a standard 5.5 x 2.5mm male DC power
plug on a compatible external power source.
-
Verify your laptop:
Confirm your Dell laptop uses
a 7.4 x 5.08mm center-pin connector.
-
Check your power cable:
Confirm the cable has a 5.5 x 2.5mm
male DC barrel plug.
-
Verify power specifications:
Make sure your external battery or
power adapter provides the correct
voltage, polarity, and sufficient power.
-
Attach the C27:
Insert the 5.5 x 2.5mm male plug
into the female jack on the C27.
-
Connect the laptop:
Insert the C27 male connector into
the compatible Dell laptop power input.
-
Confirm operation:
Check that the laptop recognizes
the power source and that charging
works as expected.
5.5 x 2.5mm Male DC Power Cable
↓
BiXPower C27 Female Input
↓
7.4 x 5.08mm Male Output with Center Pin
↓
Compatible Dell Laptop
Compatible Dell Laptop Families
The C27 was designed for selected
Dell laptop computers that use
a 7.4 x 5.08mm center-pin power connector.
Historical compatibility references include
the following product families.
Dell Inspiron
Selected Inspiron 300m, 500m, 600m,
6000, 6400, 8500, 8600, 9200,
9300, 9400, 1420, 1520, 1525,
1545, 1720, and related models.
Dell Latitude
Selected Latitude D400, D410, D420,
D430, D500, D510, D520, D530,
D600, D610, D620, D630,
D800, D810, D820, D830,
E5400, E5500, E6400, and E6500 models.
Dell XPS and Studio
Selected XPS M1210, M1330, M1530,
Studio 13, Studio 15, Studio 17,
and Studio XPS models.
Dell Precision
Selected Precision M20, M60, M65,
M70, M90, M2300, M2400, and M4300 models.
Dell Vostro
Selected Vostro 1000, 1200, 1310,
1320, 1400, 1500, 1510, 1520,
1700, 1710, and related models.
Compatibility notice:
These are historical model-family references,
not individually verified fitment guarantees.
Different configurations may use
different connectors or require different
power ratings and identification functions.
Always verify your exact model before ordering.
Understanding Dell Power Adapter Identification
Certain Dell laptop computers check
information from their connected power
adapter through the center contact
of the DC power connector.
When a laptop cannot recognize
the adapter, it may display a warning,
limit performance, or prevent its
internal battery from charging.
The BiXPower C27 includes
an identification microchip designed
to address this requirement on
compatible Dell laptops.
However, recognition and charging
are not guaranteed for every model,
BIOS version, or power source.
C27 vs. C24: Dell and HP Connectors
| Feature |
C27 – Dell |
C24 – HP |
| Intended Laptop Brand |
Dell |
HP/Compaq |
| Male Connector Size |
7.4 x 5.08mm |
7.4 x 5.08mm |
| Center Pin |
Yes |
Yes |
| Identification Design |
Dell-specific identification microchip |
HP/Compaq-style connector |
| Interchangeable? |
No. Do not substitute one for the other solely because the physical connector sizes match.
|
For compatible HP/Compaq computers,
please see
BiXPower CNT-C24
.
Important Power and Compatibility Information
Read Before Connecting
-
Not for HP laptops:
Use the appropriate HP-compatible
connector such as CNT-C24.
-
No voltage conversion:
The C27 does not change the supplied
DC voltage.
-
Correct power source required:
Verify voltage, polarity, and wattage
against your laptop requirements.
-
Power limit:
Not recommended for Dell laptops
requiring more than 120W.
-
Correct input plug required:
The C27 female jack is designed
for a 5.5 x 2.5mm male DC connector.
-
Identification varies:
The built-in microchip is intended
for compatible Dell systems,
but recognition is not guaranteed
for every laptop.
C27 vs. LC90: Different Purposes
The C27 attaches to a
5.5 x 2.5mm male power cable
and converts it to a Dell-style
7.4 x 5.08mm male connector.
If your existing Dell power adapter
already has a 7.4 x 5.08mm male plug
and you simply want to change
its orientation from straight to
right angle, the C27 is not
the correct adapter.
For that application, see the
related LC90 connector converter
listed on the BiXPower website.
Frequently Asked Questions
What does the C27 connector do?
It converts a compatible 5.5 x 2.5mm
male DC power plug into a Dell-style
7.4 x 5.08mm male connector with
center pin and includes a built-in
identification microchip.
Will the C27 work with HP laptops?
No. The C27 is designed for Dell
applications. Even if an HP laptop
uses the same physical connector size,
the identification requirements differ.
For compatible HP laptops, use CNT-C24.
Does the C27 change voltage?
No. The C27 is not a DC voltage
converter. Your power source must
provide the correct voltage and
sufficient current for your laptop.
What is the purpose of the built-in chip?
The chip is designed to support
power-adapter identification on
compatible Dell laptops.
This may help prevent adapter
recognition warnings and support
normal charging behavior.
Will the C27 eliminate all Dell adapter warnings?
Not necessarily. Compatibility depends
on the Dell model, BIOS,
identification requirements,
and the connected power source.
Can I use the C27 with a rechargeable battery?
Yes, if the battery output has
a compatible 5.5 x 2.5mm male plug
and supplies the correct voltage,
polarity, and sufficient power
for the Dell laptop.
Can I use it with a laptop requiring 150W or 180W?
The C27 is not recommended
for Dell laptops requiring
more than 120W.
Does the package include a power adapter?
No. The package contains
one C27 connector tip only.
Power adapters, batteries,
and cables are sold separately.
Package Contents
1 x BiXPower C27 Dell Laptop DC
Power Connector Tip (CNT-C27)
BiXPower offers rechargeable battery
solutions, power adapters,
DC power connectors, and accessories
for portable electronic equipment.
