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Corsair RM1000x Shift — 1000 W · 80+ Gold · ATX 3.1
Corsair

Corsair RM1000x Shift

1000 W · 80+ Gold · ATX 3.1

92
/ 100
From $229
VS
Corsair RM1000x Shift wins by 10
EcoFlow River 2 — Portable power station · 2022
EcoFlow

EcoFlow River 2

Portable power station · 2022

82
/ 100
From $249
Specdex verdict

Corsair RM1000x Shift takes it — here’s why.

In our weighted Specdex score, Corsair RM1000x Shift lands at 92 and EcoFlow River 2 at 82. That puts Corsair RM1000x Shift ahead by 10 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Corsair RM1000x Shift if…

  • ✓ATX 3.1 + 12V-2x6
  • ✓Side-mounted cables
  • ✓Quiet zero-RPM

Pick EcoFlow River 2 if…

  • ✓LiFePO4 chemistry on modern SKUs (4000+ cycles)
  • ✓Solar input
  • ✓Multiple AC/DC/USB-C outputs
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Cables

Corsair RM1000x Shift

Compared on the cables sub-score

Corsair RM1000x Shift leads on cables (96 vs 90).

Noise

Corsair RM1000x Shift

Compared on the noise sub-score

Corsair RM1000x Shift leads on noise (94 vs 86).

Efficiency

Corsair RM1000x Shift

Compared on the efficiency sub-score

Corsair RM1000x Shift leads on efficiency (90 vs 77).

Value for money

Corsair RM1000x Shift

Specdex score per dollar at MSRP

Corsair RM1000x Shift more score per dollar ($229 vs $249).

Corsair RM1000x Shift 92
vs
82 EcoFlow River 2

Score breakdown

Corsair RM1000x Shift
92
efficiency 90
noise 94
cables 96
value 88
EcoFlow River 2
82
efficiency 77
noise 86
cables 90
value 80

Specs side-by-side

Corsair RM1000x Shift versus EcoFlow River 2 — full spec comparison
Spec Corsair RM1000x Shift EcoFlow River 2
Wattage
1000 W
—
Efficiency
80+ Gold
—
Standard
ATX 3.1
—
Connectors
1× 12V-2x6 (600W)
—
Fan
135 mm FDB
—
Type
—
Portable power station
Release year
—
2022

Corsair RM1000x Shift

Pros
  • +ATX 3.1 + 12V-2x6
  • +Side-mounted cables
  • +Quiet zero-RPM
Cons
  • −Bulky side depth
  • −Price creep
  • −Gold not Platinum

EcoFlow River 2

Pros
  • +LiFePO4 chemistry on modern SKUs (4000+ cycles)
  • +Solar input
  • +Multiple AC/DC/USB-C outputs
Cons
  • −Heavy
  • −Pricey per Wh
  • −Shipping restrictions (Li-ion)

FAQ: Corsair RM1000x Shift vs EcoFlow River 2

Which is better, Corsair RM1000x Shift or EcoFlow River 2? +

Corsair RM1000x Shift scores 92 on our weighted rubric — ahead by 10. Your best pick depends on the sub-scores above.

Is Corsair RM1000x Shift worth the price? +

At $229, Corsair RM1000x Shift delivers a Specdex score of 92 — strongest in cables.

Is EcoFlow River 2 worth the price? +

At $249, EcoFlow River 2 delivers a Specdex score of 82 — strongest in cables.

Does Corsair RM1000x Shift or EcoFlow River 2 last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for cables, Corsair RM1000x Shift or EcoFlow River 2? +

Corsair RM1000x Shift — leads on cables (96 vs 90). Compared on the cables sub-score.

Which is better for noise, Corsair RM1000x Shift or EcoFlow River 2? +

Corsair RM1000x Shift — leads on noise (94 vs 86). Compared on the noise sub-score.