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Type
ATX
ATX 3.0 Compatible
ATX12V
ATX12V / EPS12V
SFX-L
ATX Fully Modular
ATX 3.1 Compatible
ATX 3.1
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Energy-Efficient
80 PLUS GOLD Certified
80 PLUS PLATINUM Certified
80 PLUS TITANIUM Certified
Maximum Power
1500W and above
2000 W
1600 W
1500 W
1200W - 1499W
1350 W
1300 W
1250 W
1200 W
900W - 1199W
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800W - 899W
850 W
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500 W
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450 W
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350 W
300 W
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240 W
120 W
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Modular
Full Modular
Main Connector
20+4Pin
24Pin
PCI-Express Connector
4 x 6+2-Pin
5 x 6+2-Pin
6 x 6+2-Pin
8 x 6+2-Pin
PSU Noise Level
Cybenetics A
Cybenetics A-
Cybenetics Standard ++
Cybenetics Standard
Haswell Support
Yes
+12V Rails
Single
2
SATA Power Connector
6
8
9
12
16
SLI
Yes
PFC
Active
Fans
1 x 140 mm
1 x 139 mm
1 x 135 mm
1 x 120 mm
1
Max PSU Length
Over 200mm
210 mm
200 to 171mm
180 mm
170 to 151mm
160 mm
150 to 140mm
150 mm
140 mm
Shorter than 140mm
125 mm
Connectors
Main Connector
1 x 24 pin ATX
1 x 24 pin (20+4) ATX
EPS/CPU Connector
1 x 8 pin CPU
1 x 8 pin (4+4) EPS (CPU)
2 x 8 pin (4+4) EPS (CPU)
PCIe Connector
1 x 12VHPWR (12+4) PCIe
1 x 16 pin PCIe
2 x 16 pin PCIe
2 x 8 pin (6+2) PCIe
3 x 8 pin (6+2) PCIe
4 x 8 pin (6+2) PCIe
6 x 8 pin (6+2) PCIe
8 x 8 pin (6+2) PCIe
SATA Power Connector
5 x SATA
6 x SATA
12 x SATA
16 x SATA
Peripheral Connector
4 x 4 pin Peripheral
Others
1 x Floppy
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(1,276)
CORSAIR RMe Series RM1200e ATX Power Supply – Fully Modular – ATX 3.1 – 80 PLUS Gold – Cybenetics Platinum – Low-Noise – 1200 Watts – Ten-Year Warranty
Model #:
CP-9020258-NA
£
214
.79
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£50.33 Shipping
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(979)
CORSAIR RMx Shift Series RM1200x Shift Fully Modular 80PLUS Gold ATX Power Supply
Model #:
CP-9020254-NA
£211.85
£
209
.99
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(464)
MSI MPG A1250GS PCIE5, Fully Modular Gaming 1250W Power Supply, 80+ Gold, Dual 12V-2x6 Cables, Server-grade Capacitor, ATX 3.1 & PCIe 5.1 Ready, Low-Noise, Semi Digital, 10 Year Warranty
Model #:
MPG A1250GS PCIE5
£
171
.59
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(695)
Seasonic PRIME TX-1300, 1300W 80+ Titanium, ATX 3.0 & PCIe 5.0 Ready, Full Modular, ATX Form Factor, Low Noise, Premium Japanese Capacitor, Nvidia RTX 40 Super/50, AMD GPU Compatible, Ref# SSR-1300TR2
Model #:
SSR-1300TR2
£
453
.59
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£59.05 Shipping
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(142)
Seasonic VERTEX PX-1200, 1200W 80+ Platinum, ATX 3.0&PCIe 5.0 Ready, Full-Modular, ATX Form Factor, Low Noise, Premium Japanese Capacitor, 12 Year Warranty, Nvidia RTX 30/40 Super, AMD GPU Compatible
Model #:
VERTEX PX-1200
£
304
.79
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£50.25 Shipping
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(75)
Lian Li Edge Series-1200W Full Modular Power Supply (Fan Hub Included) - Gold-ATX 3.0, 3.1-PCIE 5.1-L-Shape Design for Dual Chamber Case-120mm FDB Fan-Supports up to 4 USB Device - White - EG1200G.WH
Model #:
EG1200G.WH
£
165
.59
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(979)
CORSAIR RMx Shift White Series, RM1200x Shift White, 1200 Watt, 80 PLUS GOLD, Fully Modular Power Supply
Model #:
CP-9020276-NA
£
256
.79
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be quiet! Pure Power 12 M 1200W ATX 3.0 Power Supply | 80+ Gold Efficiency | PCIe 5.0 | Fully Modular | Quiet Performance | Overclocking | 10 Year Warranty
Model #:
BN513
£169.19
£
136
.79
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£32.40
(19%)
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(28)
be quiet! Straight Power 12 1200W ATX 3.0 Power Supply | 80+ Platinum Efficiency | PCIe 5.0 | Japanese 105°C Capacitors | Fully Modular PSU | 12v Rail System | 10 Year Warranty | BN517
Model #:
BN517
£259.19
£
221
.99
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£37.20
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(464)
MSI MEG Ai1300P PCIE5, Fully Modular Gaming 1300W Power Supply, 80+ Platinum, Native 12V-2x6 Cable, 100% Japanese Capacitor, ATX 3.1 & PCIe 5.1 Ready, Low-Noise, Sleeve Cables, 10 Year Warranty
Model #:
MEG Ai1300P PCIE5
£
343
.19
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(338)
MSI MAG A1250GL PCIE5, Fully Modular Compact Gaming 1250W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-color 12V-2x6 cable, 10 Year Warranty
Model #:
MAG A1250GL PCIE5
£
163
.19
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(75)
Lian Li Edge Serie - 1200W Full Modular Power Supply (Fan USB Hub Included) - Gold - ATX 3.1 - PCIE 5.1 Support - 12V-2x6 Connector - L-Shape Design for Dual Chamber Case - Black -EG1200G.BH
Model #:
EG1200G.BH
£
166
.79
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£60.59 Shipping
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ASUS ROG Loki SFX-L 1200W Titanium PSU (Fully Modular Power Supply, 80+ Titanium, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)
Model #:
ROG-LOKI-1200T-SFX-L-GAMING
£
295
.19
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£47.74 Shipping
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(170)
Thermaltake Toughpower GF3 Snow Edition 1200W 80+ Gold Full Modular SLI/Crossfire Ready ATX 3.0 Standard Power Supply, PCIe Gen.5 600W 12VHPWR Connector Included, PS-TPD-1200FNFAGU-N, 10 Year Warranty
Model #:
PS-TPD-1200FNFAGU-N
£
134
.39
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(223)
CORSAIR HX1200i (2025) Fully Modular Ultra-Low Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Platinum Efficiency, Fluid Dynamic Bearing Fan – Black
Model #:
CP-9020307-NA
£
286
.79
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£52.82 Shipping
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(8)
ASUS TUF Gaming 1200W Gold (1200 Watt, ATX 3.0 Compatible Fully Modular Power Supply, 80+ Gold Certified, Military-grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)
Model #:
TUF-GAMING-1200G
£
172
.79
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(24)
NZXT ATX 3.1 1200 Watt 80 Plus Gold Fully Modular Power Supply - Black - PA-2G2BB-US
Model #:
PA-2G2BB-US
£
161
.99
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£52.11 Shipping
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(24)
NZXT ATX 3.1 1200 Watt 80 Plus Gold Fully Modular Low-Noise Power Supply - White - PA-2G2BW-US
Model #:
PA-2G2BW-US
£
181
.19
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£52.11 Shipping
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(142)
Seasonic VERTEX GX-1200, 1200W 80+ Gold, ATX 3.0 & PCIe 5.0 Ready, Full-Modular, ATX Form Factor, Low Noise, Premium Japanese Capacitor, 12 Year Warranty, Nvidia RTX 40 Super/50 , AMD GPU Compatible
Model #:
VERTEX1200G
£
224
.39
–
£51.97 Shipping
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Thermaltake Toughpower GT 1200W; ATX 3.1; x2 Native PCIe 5.1 12V-2x6; Full Modular; Flat Cables; Color Matched Connectors; Japanese Main Capacitors; 80 Plus Gold Certified; 140mm; Black; PS-TPT-1200FN
Model #:
PS-TPT-1200FNFAGU-3
£
115
.19
–
£49.04 Shipping
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(170)
Thermaltake Toughpower GF3 1350W, ATX 3.0 Standard, PCIe Gen.5 600W 12VHPWR Connector Included, 80+ Gold Full Modular SLI/Crossfire Ready Power Supply, 10 Year Warranty, PS-TPD-1350FNFAGU-4
Model #:
PS-TPD-1350FNFAGU-4
£185.99
£
183
.59
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£52.20 Shipping
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(71)
Thermaltake Toughpower GF A3 ATX 3.0 1200W 80+ Gold Full Modular SLI/Crossfile Ready Power Supply; PCIe Gen.5 600W 12VHPWR Connector Included; PS-TPD-1200FNFAGU-L
Model #:
PS-TPD-1200FNFAGU-L
£
129
.59
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(4)
SilverStone Strider Platinum series SST-ST1200-PTS 1200 W ATX12V v2.4 80 PLUS PLATINUM Certified Full Modular Active PFC Power Supply
Model #:
SST-ST1200-PTS
£
278
.39
–
£58.55 Shipping
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SilverStone Strider Platinum series SST-ST1200-PT 1200 W ATX12V / EPS12V 80 PLUS PLATINUM Certified Active PFC Power Supply
Model #:
SST-ST1200-PT
£
296
.39
–
£61.32 Shipping
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