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JUSTOP Black 650W PSU, ATX Switching Power Supply, Computer Desktop PC, With 120mm Fan, 8-Pin 12V, 6+2 Pin PCI-E, 6x SATA (65
JUSTOP

JUSTOP Black 650W PSU, ATX Switching Power Supply, Computer Desktop PC, With 120mm Fan, 8-Pin 12V, 6+2 Pin PCI-E, 6x SATA (65

4.2 / 5 ★★★★☆ on Amazon · 191 ratings
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Reviewed 23 August 2026 · price checked live

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Overview

We track JUSTOP Black 650W PSU, ATX Switching Power Supply alongside 42 other single-board computers & accessories products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: 650W ATX Power Supply With 120mm Cooling Fan For Desktop PCs. Pin (4+4 pin) 12v rail provides more stability and safer power output. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.2 out of 5 from 191 ratings. What that score is worth next to its rivals is set out below.

At a glance
Brand
JUSTOP
Amazon rating
4.2 / 5 from 191 ratings
vs Single-Board Computers & Accessories
0.4 below the category median of 4.6
Rank in category
40 of 43 rated single-board computers & accessories we track
Price position
Among the cheaper options (category spans £5.99 to £195)
How proven
Moderate review volume

How it compares in Single-Board Computers & Accessories

Across the 43 rated single-board computers & accessories products we track, the typical score is 4.6 out of 5. This one sits at 4.2, which is in the bottom quarter of the category. That does not make it a bad buy, but there are better-rated alternatives on the same shelf, so it needs another reason to earn your money.

It carries 191 ratings against a category median of 201. That is enough of a base to take the score seriously without treating it as settled.

On price it sits in the lower third of a category running from £5.99 to £195, where the midpoint is about £59.99. Buying at the cheap end is fine when the rating holds up; check the specifics below rather than assuming the saving is free.

Worked out from the 43 single-board computers & accessories products in our catalogue, not from the brand's own claims. How we rank →

Key features

  • 650W ATX Power Supply With 120mm Cooling Fan For Desktop PCs
  • Single 8-pin (4+4 pin) 12v rail provides more stability and safer power output.
  • Connectors - 20+4 pin (540mm); 4+4 pin (550mm); SATA x3, Molex x1 (640mm); SATA x3; PCIe x1 (450mm)
  • Power Factor Control (PFC). Over voltage protection, Over power protection, short circuit protection and thermal overload cut-off protection.
  • Safety agency approval: UKCA / CE / FCC / UL and TUV Electrical Safety Certified

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