Visual inspection
The Seasonic Syncro Connect DGS-750 Gold is a power supply that uses a brand new and unique system for connecting its cables. Originally, this power supply was bundled with the Seasonic Syncro case but now can be bought as a standalone product.
From a design standpoint, the Syncro Connect DGS-750 Gold looks great, with an all-black casing and chromed fan grill and inserts.
This power supply is rather compact for a 750W unit, it has a length of 140mm, a width of 150mm and a height of 86mm.
The fan used on this power supply is 135 mm Fluid Dynamic Bearing model, and it sits behind a chromed grill. This grill is attached to the casing of the power supply and at the same time, it holds the fan. Thus, if you decide to remove this grill, you will affect the fan and its mounting points.
Going back to the fan grill, it is not a single piece but rather two. The chrome is an insert overlay white the back grill is part of the casing of the PSU. The Syncro Connect is a printed logo on the black grill.
The sides of the casing of the Syncro Connect DGS-750 sharing the same shape as the entire Seasonic Prime series. This includes a simple design and a shape that leads into a cutout into the power supply casing. This cutout acts as a passive exhaust port, or in other words, it’s an additional place for the fan airflow to exit.
From a design standpoint, the sides have the same Syncro Connect logo as the front of the power supply. In addition, some added white lines are painted on the black surface to highlight the exhaust port.
The back of the power supply is simple, as it uses the standard honeycomb pattern grille which is the main exhaust of the power supply. On this side of the power supply we have the usual connectors and switches, a power AC socket, a On/Off switch and of course, the Seasonic Hybrid Fan control.
The modular connectors with this power supply are installed on a separate module. This is the main difference between a regular power supply and the Syncro Connect.
This external module is called the Connect module which will then connect to the system cables.
On this external part you have the modular connectors of the power supply and additional connectors. The additional ones are 4 pin fan connectors and 3 pin addressable RGB connectors.
On the power supply end of things, we don’t have much, just a single thick cable that will connect to the Syncro Connect module. This cable has not one but three connectors at its end, all of them going
The top of the power supply is simple with only the specification label applied on its surface. This includes everything from the serial number, the wattages and the rails.
The cables included with the Syncro Connect DGS-750 Gold have a similar design and shape with the cables of the Prime Series. All cables are black and not sleeved, but they are flat ribbon style. This style of cable is the best one to have, as it makes cable management easier, because you can overlap cables.
Internal Components & Layout
The fan present on the Syncro Connect DGS-750 Gold is made by Hong Hua and has the model number: HA13525H12F-Z. This fan has a fluid dynamic bearing system and has a maximum of speed of 2000 RPM with a hybrid fan control mode.
This fan is using the same Hybrid fan control as the rest of the high end Seasonic units. This mode makes the fan work based on the internal temperature of the power supply and thus, it can stop if the system is under low loads.
The internal build quality is exceptional and on the same level as the Prime series. The soldering quality is excellent across the board and there are no loose components or wires to tangle on the fan.
There is enough room between the various components of the power supply to allow a good amount of airflow to travel. This is important for one simple reason, cooling. Especially for a high-end unit such as the Syncro, adequate cooling is important.
The filtering starts at the back of the PCB and power socket, and it starts with a few Y capacitors installed on a separate PCB.
The APFC section has a single bulk capacitor made by Nichicon. This model, has a maximum operating temperature of 105 degrees Celsius, and the specifications: 400 V, 820 uF. However, this power supply has been sold with a different bulk capacitor made by Hitachi, so the units might have some variation in terms of internal components.
The secondary APFC capacitors are made by Nippon Chemi-Con and are part of the KY, KZE, and W series, all with the same 105 °C temperature rating.
The APFC MOSFETS are made by Infineon and have the model number: IPA50R190CE, with the specifications: 550 V, 15.7 A @ 100 °C, 0.19 ohm.
In front of them we have a single ST Microelectronics boost diode.
The bypass relay of the power supply is made by HONGFA and has the model number: HF46F-G.
The Standby PWM Controller is made by Excelliance MOS Corp and has the model number: EM8569.
The Seasonic Syncro Connect DGS-750 Gold was originally bundled with the Seasonic Syncro case but now can be bought as a standalone unit. What separates this power supply from other models is the unique modular cable system, simply called Seasonic Connect.
Inside the Seasonic Connect module we have the same high quality soldering work. The bulk of the components are cooled passively by a heatsink installed on the underside of the PCB.
