Hardware Spec Index

Caldera PW-3843 Pro 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW3843-PRO · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index1,577 (Power Supplies scale)
Category rank#43,464
Street price$99
Power850 W (rated)
Performance per dollar15.93
Released2025

Specifications

BrandCaldera
ModelCaldera PW-3843 Pro
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-4349 Pro 850W 80 PLUS Gold ATX Power Supply1,486$99Compare
Novexa PW-8765 Core 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,795$339Compare
Vantrel PW-1635 Core 1000W 80 PLUS Gold SFX Power Supply1,862$169Compare
Novexa PW-9992 Max 850W 80 PLUS Gold SFX Power Supply1,798$119Compare
Vantrel PW-3928 Plus 750W 80 PLUS Gold ATX 3.1 Power Supply1,200$59Compare
Caldera PW-4283 Max 1600W 80 PLUS Platinum ATX 3.0 Power Supply2,641$279Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3843 Pro 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/8497288 (accessed 2026-10-21).