Best TFX PSU for Slim Small Form Factor Low Profile PC & HTPC

A TFX PSU is a Thin Form Factor Power Supply for low profile and small form factor computers. Like the SFX power supply, the TFX power supply is also based on the ATX specifications. TFX power supplies are longer and narrower, which allows them to fit easily in low-profile and slim cases. These TFX PSUs come in lower power capacities, generally up to 300Watts because small form factor systems consume very less power for their operation.

A typical TFX Power Supply has dimensions as 175mm (L) × 85 mm (W) × 65mm (H), and they come with a top/bottom mounted 80mm fan for cooling. The fan can also be used as an exhaust fan for taking out heat generated from the processor and motherboard to the surroundings from its backside. A TFX PSU is longer than SFX PSU, but it is less wide than it. Some small form factor and low profile PC cases support only SFX PSUs and some can only take TFX PSU. So, here in this post, I am going to list down the best TFX PSUs for your small form factor build.

Read also: Best Flex ATX PSU for 1U Servers, SFF & Mini-ITX Builds

Note: Most of the Dell, Lenovo, and HP SFF desktops use TFX power supplies, and you can use the below-mentioned TFX PSUs as a replacement PSU for these Slim SFF PCs or as an upgrade too if the PSU in your SFF PC is not that powerful enough.  You must also know that there is no modular TFX PSU available in the market right now.

Best TFX Power Supply for Slim or SFF Low Profile PCs

Here are the best TFX power supplies for slim and low-profile desktop builds that only support TFX PSUs. All the below-mentioned TFX Power Supplies are ATX compliant and can be used with regular computer components or motherboards.

Apevia TFX-AP300W Power Supply

Apevia TFX-AP300W is a budget TFX power supply (ATX complaint) and is one of the cheapest TFX PSUs that you can find in the market. This TFX PSU comes with all the required connectors including a 24-pin motherboard connector but lacks a PCI-E power connector. This is a 300W TFX PSU and has got 20A current on the 12V Rail, which I think is enough to power a basic small form factor PC. For cooling, it comes with one 80mm fan which is pretty quiet in operation.

Apevia-TFX-AP300W-Power-SupplyThe TFX Power Supply comes in all black color and has got non-sleeved cables. On the rear side, you will get a 115/230 Volt selector switch to select the appropriate input voltage based on your country or place. This is a pretty affordable TFX PSU for low-power SFF builds. The PSU is damn cheap and is priced way under 50 dollars. Overall it is a good budget replacement TFX PSU for slim desktop tower PCs.

Apevia TFX-AP300W Power Supply Specifications
Wattage 300W
12V Rail 20A, Single
Fan Size 80mm Fan
80 Plus Certification NA
PCI-E Connector No
Features Basic protection features, 115/230 Volt selector switch

Buy Apevia TFX-AP300W Power Supply

SilverStone TX300 TFX Power Supply

SilverStone TX300 is a high-quality 300 Watt TFX Power Supply for slim small form factor builds. It is an 80 Plus Bronze Certified Power Supply and comes with dual 12V Rails having a total of 29A current. The PSU also comes with a 6-Pin PCI Express power connector and can support an SFF mid-range graphics card from Nvidia and AMD.

SilverStone-TX300-TFX-Power-Supply

SilverStone TX300 TFX PSU comes in black color and it is fitted with a silent 80mm fan that generates a maximum of 18dBA noise. It is an ATX complaint TFX power supply that comes with sleeved cables and all the protection features that include Over Power Protection, Over Voltage Protection, and Short Circuit Protection. So, if you are looking for a relatively powerful power-efficient, and quality TFX PSU at an affordable price then you won’t find anything better than this. Highly Recommended by me.

SilverStone TX300 TFX Power Supply Specifications
Wattage 300W
12V Rail 29A (14A+15A), Dual
Fan Size 80mm (18dBA)
80 Plus Certification 80 Plus Bronze
PCI-E Connector 6-Pin x 1
Features Active PFC, Over Power Protection, Over Voltage Protection, Short Circuit Protection, Sleeved Cables

Buy SilverStone TX300 TFX Power Supply

FSP 300W TFX 80 Plus Power Supply

A budget 300 Watt TFX Power Supply from FSP. The exact model number of this TFX power supply is FSP300-60GHT(80). This is an 80 Plus White certified PSU that has got dual 12V rails with a combined current of 30 Ampere on it. The power supply comes with all the required connectors but lacks PCI-Express power connectors. It is a quiet TFX PSU having a single 80mm fan and can serve as a great replacement TFX PSU in slim HTPC builds.

FSP-300W-TFX-80-Plus-Power-SupplyOther features include Active PFX and Complete OVP, OCP, and SCP Protection. There is also an 80 Plus Gold variant available for this PSU with the same specifications. You can check both these TFX PSUs from the links given below.

FSP 300W TFX 80 Plus Power Supply
Wattage 300W
12V Rail 30A, Dual (14A + 16A)
Fan Size 80mm
80 Plus Certification 80 Plus White
PCI-E Connector NA
Features Active PFC, Complete OVP, OCP, SCP Protection

Buy FSP 300W TFX 80 Plus Power Supply

Buy FSP 300W TFX 80 Plus Gold Power Supply

SeaSonic SS-300TFX Bronze Power Supply

SeaSonic is one the biggest names in power supplies and here we have an 80 Plus Bronze 300W TFX Power Supply from it. This is a pretty basic TFX PSU from Seasonic that comes with all the basic connectors excluding PCIe power connectors. It has got 21A current on its single 12V Rail and a double ball bearing 80mm fan for cooling the PSU components. Other features include Active PFC 99% and protection features including OCP, SCP, OVP, and OPP. Recommended by me.

SeaSonic-SS-300TFX-Bronze-Power-Supply

SeaSonic SS-300TFX Bronze Power Supply Specifications
Wattage 300W
12V Rail 21A, Single
Fan Size 80mm
80 Plus Certification 80 Plus Bronze
PCI-E Connector NA
Features Active PFC, OCP, SCP, OVP, OPP

Buy SeaSonic SS-300TFX Bronze Power Supply

SeaSonic SS-300TGW Gold TFX Power Supply

Another Seasonic TFX PSU but this one is better than the above-mentioned SeaSonic SS-300TFX Bronze PSU. SeaSonic SS-300TGWis an 80 Plus Gold Certified TFX Power Supply that comes with dual 12V Rails and a total of 36A current on it, which I think is more than sufficient for any small form factor PC. It does not come with a PCI Express connector but all the other required connectors for motherboard, CPU, peripherals, and drives. Other features include Active PFC and protection features like OCP, SCP, OVP, and OPP.

SeaSonic-SS-300TGW-Gold-TFX-Power-Supply

SeaSonic SS-300TGW Gold TFX PSU Specifications
Wattage 300W
12V Rail 36A, Dual (18A+18A)
Fan Size 80mm
80 Plus Certification 80 Plus Gold
PCI-E Connector NA
Features Active PFC, OCP, SCP, OVP, OPP

Buy SeaSonic SS-300TGW Gold TFX PSU

be quiet! TFX Power 2

[High Quality & Performance, Quiet Operation]

Quite possibly the best TFX power supply that you can get for your mini-ITX gaming, work, or media PC. be quiet! TFX Power 2 is a 300 Watt compact TFX power supply that comes in both Bronze and Gold 80 Plus certifications. The 80 PLUS Gold version offers an efficiency rating of up to 91% and the Bronze one up to 87%. The power supply uses an 80mm fan for cooling, which is pretty silent in operation but can become audile at higher loads. The PSU comes with a dual 12V Rail having a total current of 26A (13A+13A), which is quite sufficient for building a budget mid-range PC. Moreover, it comes with a 6-pin PCIe power connector for the graphics card, and you can easily run a budget mid-range graphics card on this PSU without any issues.

be-quiet-TFX-Power-2

The build quality of the power supply is good, and it comes in all black color. It has got all the necessary safety protection features, which you would generally expect from a German company like this. This TFX power supply does cost a bit more than other TFX power supplies because of its higher quality build and performance. So, if you are looking for a highly reliable TFX PSU for your compact build or case, then you cannot find anything better than this.

be quiet! TFX Power 2 Specifications
Wattage 300W
12V Rail 26A (13A+13A), Dual
Fan Size 80mm Fan
80 Plus Certification Bronze/Gold
PCI-E Connector 6-Pin x 1
Features Dual 12V Rails, Sleeved cables (up to 65cm long), Active PFC, Over Power Protection, Over Voltage Protection, Short Circuit Protection

Buy be quiet! TFX Power 2

Other TFX Power Supplies

You can also check out some other good TFX Power Supplies from the link below.

See also:

Final Words

In the end, I would like to say that the above-mentioned TFX PSUs are great for building a low-profile SFF PC. They are from reputed brands and deliver good performance. Also, some of them are very power efficient and come with an 80 Plus rating. If you have got any queries regarding them then please leave a comment below.

(*This post may contain affiliate links, which means I may receive a small commission if you choose to purchase through the links I provide (at no extra cost to you). Thank you for supporting the work I put into this site!)

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