The XPG Core Reactor II 1200W uses a proven platform provided by Channel Well Technology, with codename CSZ. This was among the first platform to meet the ATX v3.0 requirements, so it is widely popular nowadays, and for a good reason.
The XPG Core Reactor II 1200 is included in my best ATX v3.x & PCIe 5.x PSU picks article.
The XPG Core Reactor II 1200W uses a reliable platform provided by Channel Well Technology, which other big brands also utilize, including Thermaltake, DeepCool, and NZXT. Currently, the XPG Core Reactor II 1200W costs $200, while the Thermaltake Toughpower GF3 1200W is 30 dollars more affordable. The DeepCool PX1200G is $190, and the NZXT C1200 has the same price as the XPG Core Reactor II 1200W. All models mentioned above use the same CWT platform with the code name CSZ. Some parts differ, depending on the requirements of each brand, but the main platform remains the same.
The unit is certified by Cybenetics, has a Platinum efficiency rating, and a Standard+ rating in noise. Strangely enough, XPG downgraded this unit to Cybenetics Gold, probably to match the respective 80 PLUS badge. I would consider the more rigorous testing over the one based on only three or four measurements. The rest of the unit’s specs include a 50 °C temperature rating, a fluid dynamic bearing fan, and the lack of a semi-passive mode, which is fine with me from the moment the fan spins at low speeds under light loads, not allowing heat build-up at the PSU’s internals.
- Manufacturer (OEM): CWT
- Max Power: 1200W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%)
- 80 Plus Efficiency: Gold
- Noise [115V]: Cybenetics Standard+ (35-40 dB[A])
- Compliance: ATX v3.0, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 1200W
- Number of 12V rails: 1
- Power 5V + 3.3v: 120W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12SF-Z)
- Semi-Passive Operation: ✗
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 6x PCIe 6+2 pin (3x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 9x SATA (3x cables), 3x 4-pin Molex (3x cables)
- ATX Cable Length: 640mm
- EPS Cable Length: 650mm
- 6+2 pin PCIe Cable Length: 650mm
- 12+4 pin PCIe Cable Length: 650mm
- Distance between SATA\4-pin Molex: 150mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 160mm
- Weight: 1.83 kg (4.03 lb)
- Warranty: 10-years
- Street price (excluding VAT): $200
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 22 | 22 | 100 | 3 | 0.3 |
| Watts | 120 | 1200 | 15 | 3.6 | ||
| Total Max. Power (W) | 1200 | |||||
fwiw I got some horrible coil whine with this PSU on low loads. Not sure if it was just my unit but had to return it as it was unbearable without headphones on windows’ power saver power plan, mostly disappeared on balanced if I wasn’t mostly idle