Hardware Secrets
Home | Camera | Case | CE | Cooling | CPU | Input | Memory | Mobile | Motherboard | Networking | Power | Storage | Video | Other
First Look
Gabriel’s Blog
Main Menu
About Us
Awarded Products
Manufacturer Finder
RSS Feed
Test Your Skills
Subscribe today!
Switching Power Supplies A - Z, Second Edition
Switching Power Supplies A - Z, Second Edition, by Sanjaya Maniktala (Newnes), starting at $55.25
Home » Power
Seasonic M12D 750 W Power Supply Review
Author: Gabriel Torres 76,591 views
Type: Reviews Last Updated: June 19, 2009
Page: 1 of 10
Hardware Secrets Golden Award

Seasonic is a traditional OEM manufacturer, being the real manufacturer behind units from brands like Antec, Corsair and Arctic Cooling (not all power supplies from these brands are manufactured by Seasonic, though). They also sell power supplies using their own brand and today we are going to review their M12D 750 W unit (also known as SS-750EM), which uses a modular cabling system and high-end components. Let’s see whether this is a good unit or not.

One annoying thing about Seasonic is that they have three websites, http://www.seasonic.com, http://www.seasonic.com.tw and http://www.seasonicusa.com, but retail products like the reviewed power supply can only be found on the later. In our opinion this makes no sense and only makes it difficult to consumers to find out more about their products.

Seasonic M12D 750 W power supply
click to enlarge
Figure 1: Seasonic M12D 750 W power supply.

Seasonic M12D 750 W power supply
click to enlarge
Figure 2: Seasonic M12D 750 W power supply.

M12D 750 W isn’t a long power supply, being 6 1/2” (16.5 cm) deep, using a 120 mm fan on its bottom and featuring active PFC, of course. It comes with a half modular cabling system, as some peripheral cables come from inside the power supply: two auxiliary video card power cables with one six/eight pin connector each and one SATA power cable, with three SATA connectors, besides the main motherboard cable (which uses a 20/24-pin connector), an ATX12V cable and an EPS12V cable. All these cables have a nylon protection that comes from inside the unit.

The modular system has six connectors and this power supply comes with nine cables:

  • Two cables with one six/eight-pin auxiliary video card power connector each.
  • Two cables with three SATA power connectors each.
  • One cable with two SATA power connectors.
  • Two cables with three standard peripheral power connectors each.
  • One cable with two standard peripheral power connectors.
  • One adapter for converting one standard peripheral power connector into two floppy disk drive power connectors.

All cables are relatively long, with 20 1/2” (52 cm) between the power supply housing and the first connector on the cable. On the cables with more than one connector, there is 5 29/32” (15 cm) between the connectors.

Peripheral and SATA power cables use 18 AWG wires and the main motherboard cable and video card auxiliary power cables use thicker 16 AWG wires, which is great to see.

Seasonic M12D 750 W power supply
click to enlarge
Figure 3: Cables.

The number of cables is terrific for the high-end user, however if you want to install more than two very high-end video cards you will need to use adapters, since each very high-end card takes two auxiliary power connectors each and this power supply comes with “only” four of them.

Now let’s take an in-depth look inside this power supply.

Print Version | Send to Friend | Bookmark Article Page 1 of 10  | Next »

Related Content
  • Seasonic S12D 750 W Power Supply Review
  • XFX 850 W Black Edition Power Supply Review
  • Can We Trust the 80 Plus Certification?
  • Power Supplies With Fake 80 Plus Badges
  • Antec High Current Gamer 750 W Power Supply Review

  • RSSLatest Content
    Zalman ZM-T3 Case Review
    May 28, 2015 - 3:00 AM
    ASUS H81M-A Motherboard
    May 27, 2015 - 4:31 PM
    ASRock FM2A88X-ITX+ Motherboard
    April 27, 2015 - 2:40 AM
    GeForce GTX TITAN X Video Card Review
    April 22, 2015 - 4:00 AM
    A10-7800 CPU Review
    April 6, 2015 - 2:50 AM
    Samsung Galaxy A5 Smartphone Review
    March 31, 2015 - 2:47 AM

    2004-15 Clube do Hardware, all rights reserved.
    Advertising | Legal Information | Privacy Policy
    All times are Pacific Standard Time (PST, GMT -08:00)