We would like to thank Kolink for supplying the review sample.
Kolink is known for its high performance per buck products. In other words, this brand definitely knows how to make well-performing, but affordable products happen. Besides cases and various accessories, Kolink also has several PSU lines in its portfolio, of which the most recent addition is the Enclave series.
Enclave units come in three flavors, in capacities of 500 W, 600 W, or 700 W. All are 80 PLUS Gold certified and Cybenetics ETA-A efficiency and LAMBDA-A noise certified, which means they indeed are efficient and silent.
|Kolink KL-G700FM Features & Specifications|
|Max. DC Output||700 W|
|Efficiency||ETA-A & 80 PLUS Gold|
|Intel C6/C7 Power State Support||✓|
|Operating Temperature||0–40 °C|
|Protections||Over Voltage Protection|
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection
Short Circuit Protection
|Cooling||120 mm rifle bearing fan (EFS-12E12H)|
|Dimensions||150 mm (W) x 85 mm (H) x 160 mm (D)|
|Weight||1.57 kg (3.46 lb)|
|Compliance||ATX12V v2.31, EPS 2.92|
|Price at Time of Review (excl. VAT)||67.14€|
|Kolink KL-G700FM Power Specs|
|Rail||3.3 V||5 V||12 V||5 VSB||-12 V|
|Max. Power||16 A||16 A||58 A||3 A||0.5 A|
|100 W||696 W||15 W||6 W|
|Total Max. Power||700 W|
Cables and Connectors
|Description||Cable Count||Connector Count (Total)||Gauge||In Cable Capacitors|
|ATX connector 20+4 pin (500 mm)||1||1||18-22AWG||No|
|4+4 pin EPS12V (650 mm)||1||1||18AWG||No|
|6+2 pin PCIe (600 mm+100 mm)||2||4||18AWG||No|
|SATA (450 mm+120 mm+120 mm)||2||6||20AWG||No|
|SATA (450 mm) / 4-pin Molex (+120 mm+120 mm)||2||2 / 4||20AWG||No|
The PSU only has modular cables, but all are sufficiently long. With the exception of the EPS connector, there are also enough connectors. Finally, the distance between peripheral connectors is short at only 120 mm. Ideally, these should be 150 mm apart.
|Kolink KL-G700FM Parts Description|
|PCB Type||Double Sided|
|Transient Filter||4x Y caps, 2x X caps, 2x CM chokes, 1x MOV|
|Bridge Rectifier(s)||1x GBU1506 (600 V, 15 A @ 100 °C)|
|Inrush Current Protection||NTC Thermistor & Relay|
|APFC MOSFETs||2x Infineon IPA50R190CE (550 V, 15.7 A @ 100 °C, 0.19 Ohm)|
|APFC Boost Diode||1x Infineon IDH06G65C6 (650 V, 6 A @ 145 °C)|
|Hold-up Cap(s)||1x Teapo (420 V, 560 uF, 2,000 h @ 105 °C, LG)|
|Main Switchers||4x Great Power GPT13N50D (500 V, 13 A, 0.49 Ohm)|
|APFC Controller||On Semiconductor NCP1654|
|Resonant Controller||Champion CM6901T6|
|Topology||Primary side: Full-Bridge & LLC converter|
Secondary side: Synchronous Rectification & DC-DC converters
|+12V||6x Infineon PSMN1R4-40YLD (40 V, 214 A @ 100 °C, 2.65 mOhm @ 175 °C)|
|5V & 3.3V||DC-DC Converters: 4x Excelliance MOS EMB09N03HR (30 V, 35 A @ 100 °C, 9.5 mOhm)|
PWM Controllers: ANPEC APW7159
|Filtering Capacitors||Electrolytics: 7x Teapo (1 - 3,000 h @ 105 °C, SC), 3x Teapo (2,000 h @ 105 °C, SH), 1x Asia'x (105°C, TMX)|
Polymers: 8x Teapo
|Supervisor IC||IN1S313I-DAG & UTC393|
|Fan Model||DWPH EFS-12E12H (120 mm, 12 V, 0.50 A, Rifle Bearing Fan)|
|Rectifier(s)||1x Diodes Incorporated MBR2045CT SBR (45 V, 20 A)|
|Standby PWM Controller||Infineon ICE2QR4765|
There are no large heatsinks on this platform, which uses a full-bridge topology along with an LLC resonant converter on the primary side. On the secondary side, a pair of DC-DC converters generate the minor rails. Kolink didn't want to reveal the name of the original manufacturer (OEM) and only stated that they also had a role in the design, which is why I cited Kolink as the OEM in the table above.
The transient filter is complete, and the single bridge rectifier is bolted to a small heatsink.
There is an MOV and an NTC thermistor, which is supported by a bypass relay.
The APFC converter uses a single Teapo cap rated at 105 °C. After the hold-up cap, four FETs chop the DC signal into short pulses—their amplitude is the magnitude of the input voltage. The duty cycle is controlled by a Champion CM6901 controller.
The +12V FETs are installed on the solder side of the PCB, along with several other interesting components.
Considering the retail price, soldering quality is actually very good.
Almost all filtering caps are provided by Teapo. I am not fond of the SC line because of its low lifetime. Thankfully, eight polymer caps also help with ripple filtering.
The DC-DC converters that handle the minor rails.
The 5VSB regulator circuit.
The cooling fan uses a rifle bearing; that is, according to Kolink's PSU product manager. However, the same model is used and described as a sleeve-bearing fan in other budget PSUs. I asked Kolink's PSU PM, and he said that the same model number is used for several types of fans to save money on safety certifications. Indeed, several other fan vendors do use the same model number for both rifle and plain sleeve bearing fans.