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Seasonic Cable Compatibility

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Updated: November 2025

Seasonic PSU Cable Compatibility Guide

Modular power supply cables have revolutionized PC building, offering cleaner cable management and easier system builds. This guide helps you identify which Seasonic modular cables are compatible with your power supply. All current Seasonic series share a unified pinout design, while older or legacy platforms may use different layouts. Use the tables below to confirm which cables can safely be used with your PSU.

⚠️
Critical Safety Information

Modular cables are NOT cross-brand compatible. PSU cables from different manufacturers—and even between different series within the same brand—often use different pinouts. Using incompatible cables can result in component damage, fire hazards, or warranty voidance.

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Seasonic Cable Compatibility Quick Guide

  • Current Generation: CORE, FOCUS, VERTEX, and PRIME series share the same pinout—cables can be interchanged safely between these series. Check the detailed compatibility tables below.
  • Legacy Models: Older power supplies may use different pinouts. Check the detailed compatibility tables below.
  • Model Not Listed? Contact Seasonic Support before using cables from a different model or series.

Need Help? Contact Seasonic Technical Support or visit our official website for specifications and documentation.

Cable Pinouts Reference

▶ PSU Modular Connector Layout

Visual reference showing the modular connector layout on Seasonic power supplies.


Seasonic PSU modular panel and cable pinout overview

🔍 Click image to enlarge

Note: The modular panel layout may vary between power supply models and series.

▶ Cable Pinouts & Wiring Diagrams

Detailed pinout information for all Seasonic modular cables. Use this reference when creating custom cables or troubleshooting.

⚠️ Disclaimer: Pinout information provided for reference only. Always verify with official documentation before use. Seasonic is not liable for damage resulting from incorrect wiring. Use at your own risk.

📄 Download Complete Pinout Reference

Download the complete reference with all Seasonic cable pinouts and wiring details.

Download Seasonic Pinout Reference (PDF)

ATX 24-Pin Connector

18-Pin PSU Connector

PSU Pin Wire Gauge Voltage MB Pin
18P-1 AWG16 +5V 24P-4
18P-2 AWG16 +5V 24P-6
18P-3 AWG16 +5V 24P-21
18P-4 AWG16 GND 24P-3
18P-5 AWG16 GND 24P-5
18P-6 AWG18 GNDs 24P-3
18P-7 – – 24P-3
18P-8 AWG16 +3.3V 24P-1
18P-9 AWG16 +3.3V 24P-2
18P-10 AWG16 +5V 24P-22
18P-11 AWG16 +5V 24P-23
18P-12 AWG18 +5Vs 24P-21
18P-13 AWG16 GND 24P-7
18P-14 AWG16 GND 24P-15
18P-15 AWG16 GND 24P-17
18P-16 AWG18 +3.3Vs 24P-13
18P-17 AWG16 +3.3V 24P-12
18P-18 AWG16 +3.3V 24P-13

10-Pin PSU Connector

PSU Pin Wire Gauge Voltage MB Pin
10P-1 AWG16 GND 24P-18
10P-2 AWG16 GND 24P-19
10P-3 AWG18 GND 24P-24
10P-4 AWG18 +12Vs 24P-10
10P-5 AWG18 PS_ON 24P-16
10P-6 AWG16 +12V 24P-10
10P-7 AWG16 +12V 24P-11
10P-8 AWG18 -12V 24P-14
10P-9 AWG18 +5Vsb 24P-9
10P-10 AWG18 P.G. 24P-8

8-Pin EPS12V (CPU) Connector

PSU Pin Wire Gauge Voltage CPU Pin
1 AWG16 +12V 8
2 AWG16 +12V 7
3 AWG16 +12V 6
4 AWG16 +12V 5
5 AWG16 GND 4
6 AWG16 GND 3
7 AWG16 GND 2
8 AWG16 GND 1

8-Pin PCIe (6+2 GPU) Connector

PSU Pin Wire Gauge Voltage GPU Pin
8P-01 AWG16 +12V 8P-03
8P-02 AWG16 +12V 8P-02
8P-03 AWG16 +12V 8P-01
8P-05 AWG16 GND 8P-04
8P-05 AWG16 GND 8P-08
8P-06 AWG16 GND 8P-07
8P-07 AWG16 GND 8P-06
8P-08 AWG16 GND 8P-05

SATA Power Connector

PSU Pin Wire Gauge Voltage SATA Pin
1 AWG18 +12V 13, 14, 15
2 AWG18 GND 4, 5, 6
3 – – –
4 AWG18 +3.3V 1, 2, 3
5 AWG18 GND 10, 11, 12
6 AWG18 +5V 7, 8, 9

Molex (Peripheral) Connector

PSU Pin Wire Gauge Voltage Molex Pin
1 AWG18 +12V 1
2 AWG18 GND 2
3, 4 – – –
5 AWG18 GND 3
6 AWG18 +5V 4

12VHPWR / 12V-2×6 Connector

PSU Pin Wire Gauge Voltage GPU Pin
1-6 AWG16 +12V 1-6
7-12 AWG16 COM (GND) 7-12
S1-S4 AWG28 Sense Signals S1-S4

Note: Native 12VHPWR/12V-2×6 cables are only compatible with ATX 3.0/3.1 power supplies.

⚠️ Important Safety Notes:

  • Always verify pinouts before creating custom cables
  • Never mix cables from different PSU brands
  • Use appropriate wire gauge for the current requirements
  • Test continuity and voltage levels before connecting to components

Organized Cable Compatibility

Current Models

Legend:

  • ✓ Cables are fully compatible with the power supply Series.
  • ✕ Cables are not compatible with the power supply Series.
  • x “x” in the label can be any letter (e.g., xJ09, xE25).

▶ PRIME Series
Cable Family Labels PRIME TX
(ATX 3.0 / 3.1)
Noctua Edition		 PRIME PX
(ATX 3.0 / 3.1)		 PRIME
TX-PX-GX
Snow Silent		 PRIME Fanless
TX-PX1
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓ ✓ ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓ ✓ ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓ ✓ ✓
12VHPWR 2×8-pin to 12VHPWR ✓ ✓ ✓ ✓
12VHPWR Native 12VHPWR ✓ ✓ ✕2 ✕2
12V-2×6 2×8-pin to 12V-2×6 ✓ ✓ ✓ ✓
12V-2×6 Native 12V-2×6 ✓ ✓ ✕2 ✕2
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓ ✓

Remarks (PRIME):

  • 1 PRIME Fanless TX-700, TX-600, PX-500 and PX-450 only.
  • 2 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ VERTEX Series
Cable Family Labels VERTEX PX
(ATX 3.0 / 3.1)		 VERTEX GX
(ATX 3.0 / 3.1)		 VERTEX GX White
(ATX 3.0 / 3.1)		 VERTEX 사쿠라
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓ ✓ ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓ ✓ ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓ ✓ ✓
12VHPWR 2×8-pin to 12VHPWR ✓ ✓ ✓ ✓
12VHPWR Native 12VHPWR ✓ ✓ ✓ ✓
12V-2×6 2×8-pin to 12V-2×6 ✓ ✓ ✓ ✓
12V-2×6 Native 12V-2×6 ✓ ✓ ✓ ✓
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓ ✓

▶ FOCUS Series
Cable Family Labels FOCUS GX
(ATX 3.0 / 3.1)		 FOCUS PX / GX
(Any models)		 FOCUS GM FOCUS SGX / SPX
(2021)1
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓ – ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓ – ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓ ✓ ✓
12VHPWR 2×8-pin to
12VHPWR		 ✓ ✓ ✕2 ✓
12VHPWR Native 12VHPWR ✓ ✕3 ✕3 ✕3
12V-2×6 2×8-pin to
12V-2×6		 ✓ ✓ ✕2 ✓
12V-2×6 Native 12V-2×6 ✓ ✕3 ✕3 ✕3
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓ ✓

Remarks (FOCUS):

  • 1 FOCUS SGX/SPX use shorter cables: xB96 (ATX 24-pin), xE23 (CPU), xG27 (PCIe), xB96 (Molex), xB88 (SATA).
  • 2 These models are incompatible as they lack the two modular 8-pin connectors required for this cable.
  • 3 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ CORE Series
Cable Family Labels CORE GX
(ATX 3.0 / 3.1)		 CORE GX CORE GM
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓ –
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓ –
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓ ✓
12VHPWR 2×8-pin to 12VHPWR ✓ ✓ ✕1
12VHPWR Native 12VHPWR ✓ ✕2 ✕2
12V-2×6 2×8-pin to 12V-2×6 ✓ ✓ ✕1
12V-2×6 Native 12V-2×6 ✓ ✕2 ✕2
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓

Remarks (CORE):

  • 1 These models are incompatible as they lack the two modular 8-pin connectors required for this cable.
  • 2 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ B12 BM – G12 GM Series
Cable Family Labels B12 BM G12BM
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 – –
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 – –
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓
12VHPWR 2×8-pin to
12VHPWR		 ✕1 ✕1
12VHPWR Native 12VHPWR ✕2 ✕2
12V-2×6 2×8-pin to
12V-2×6		 ✕1 ✕1
12V-2×6 Native 12V-2×6 ✕2 ✕2
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓

Remarks (B12 BM – G12 GM):

  • 1 These models are incompatible as they lack the two modular 8-pin connectors required for this cable.
  • 2 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

Discontinued Models

Legend:

  • ✓ Cables are fully compatible with the power supply Series.
  • ✕ Cables are not compatible with the power supply Series.
  • x “x” in the label can be any letter (e.g., xJ09, xE25).

▶ Legacy PRIME Series
Cable Family Labels PRIME Ultra
(Any Models)		 PRIME Titanium
Platinum – Gold		 PRIME Fanless 600
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓1 ✓1
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓1 ✓1
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓1 ✓1
12VHPWR 2×8-pin to 12VHPWR ✓ ✓ ✓
12VHPWR Native 12VHPWR ✕2 ✕2 ✕2
12V-2×6 2×8-pin to 12V-2×6 ✓ ✓ ✓
12V-2×6 Native 12V-2×6 ✕2 ✕2 ✕2
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓

Remarks (Legacy PRIME):

  • 1 While legacy PRIME Series models originally used cables with inline capacitors, cables without them are also compatible.
  • 2 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ Legacy FOCUS Series
Cable Family Labels FOCUS Plus
Gold – Platinum		 FOCUS Gold
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓1 –
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓1 –
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓1 ✓
12VHPWR 2×8-pin to
12VHPWR		 ✓ ✕2
12VHPWR Native 12VHPWR ✕3 ✕3
12V-2×6 2×8-pin to
12V-2×6		 ✓ ✕2
12V-2×6 Native 12V-2×6 ✕3 ✕3
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓

Remarks (Legacy FOCUS):

  • 1 While legacy FOCUS Series models originally used cables with inline capacitors, cables without them are also compatible.
  • 2 These models are incompatible as they lack the two modular 8-pin connectors required for this cable.
  • 3 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ Legacy Platinum Series
Cable Family Labels Platinum
(XP2 – XP3)		 Platinum Snow Silent Platinum Fanless
(FL2)
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✓ ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✓ ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✓ ✓
12VHPWR 2×8-pin to 12VHPWR ✓ ✓ ✓
12VHPWR Native 12VHPWR ✕1 ✕1 ✕1
12V-2×6 2×8-pin to 12V-2×6 ✓ ✓ ✓
12V-2×6 Native 12V-2×6 ✕1 ✕1 ✕1
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✓ ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✓ ✓

Remarks (Legacy Platinum):

  • 1 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ Legacy X-Series
Cable Family Labels X-Series
(KM3 – XM2)		 X-Series
(KM – KM2)		 X-Series
(FL)
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓ ✕ ✕
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓ ✕ ✕
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓ ✕ ✕
12VHPWR 2×8-pin to
12VHPWR		 ✓ ✕ ✕
12VHPWR Native 12VHPWR ✕1 ✕1 ✕1
12V-2×6 2×8-pin to
12V-2×6		 ✓ ✕ ✕
12V-2×6 Native 12V-2×6 ✕1 ✕1 ✕1
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓ ✕ ✕
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓ ✕ ✕

Remarks (Legacy X-Series):

  • 1 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ Legacy M12II Evo Series
Cable Family Labels M12II Evo
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓
12VHPWR 2×8-pin to 12VHPWR ✓
12VHPWR Native 12VHPWR ✕1
12V-2×6 2×8-pin to 12V-2×6 ✓
12V-2×6 Native 12V-2×6 ✕1
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓

Remarks (Legacy M12II Evo):

  • 1 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

▶ Legacy G-Series
Cable Family Labels G 시리즈
24-pin ATX xJ09, xJ11, xJ21, xJ49, xJ59, xJ73 ✓
8-pin EPS 12V
(CPU)		 xE03, xE25, xG05, xE46, xE73, xE81 ✓
6+2-pin PCIe (GPU) xG03, xG04, xG12, xG13, xG33, xG34, xG46, xG79, xG91, xG92 ✓
12VHPWR 2×8-pin to 12VHPWR ✓
12VHPWR Native 12VHPWR ✕1
12V-2×6 2×8-pin to 12V-2×6 ✓
12V-2×6 Native 12V-2×6 ✕1
SATA xB03, xB21, xB55, xB56, xB65, xB80, xB81, xB82, xB101, xB118, xB119, xB133, xB134, xB146, xB149 ✓
Peripheral (Molex) xB08, xB18, xB20, xB27, xB57, xD20, xD27, xD57, xB58, xD39 ✓

Remarks (Legacy G-Series):

  • 1 These models are not ATX 3.x and are not compatible with native 12VHPWR or 12V-2×6 cables.

Need Additional Support?

If your Seasonic power supply model is not listed in the compatibility tables above, or if you have questions about cable compatibility for your specific setup, our technical support team is here to help.

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Last updated: November 2025 | © Seasonic Electronics Co., Ltd.