Available in 1000W (SP1000P) and 850W (SP850P) variants, Lian Li's new SP Platinum lineup of  fully modular SFX power supply units feature 80 PLUS Platinum certification, where they'd be right at home in a high-end small form factor (SFF) PC build.

If you're in the market for a high-end small form factor (SFF) PC build, you won't want to miss out on Lian Li's new SP Platinum lineup of high-performance SFX power supply units (PSUs). Launched for sale on 14th November 2025, the refreshed SP line-up now features 80 PLUS Platinum certification and is available in black or white colourways, where you get the option of an 850W variant (SP850P) or the range-topping 1000W variant (SP1000P). As an ATX 3.1-compliant PSU offering, these PSUs comes equipped with a native 12V-2x6 power connector for next-generation graphics cards and multiple 8-pin PCIe power connectors for added flexibility in terms of the graphics cards that you can use in your PC build with this PSU. Equipped with a smart cooling system where the 92mm cooling fan only activates when the PSU is above 40% load, these new PSUs sure look promising from a specifications perspective.

To get acquainted with the SP Platinum lineup, we'll be taking a closer look at the 1000W SP1000P - read on to learn more about the PSU and its features, and to see it as part of a demo build featuring Lian Li's A3-mATX small form factor PC case, HydroShift II LCD-C 360 CL AIO CPU cooler and a bunch of Uni Fan CL Wireless case fans.

Packaging

The PSU comes shipped in a rectangular box with Lian Li's signature black and blue colourway, with information on the features and specifications of the PSU found on all sides of the box.

The following accessories come included with the SP1000P:

• Thank you card
• User's manual
• SFX to ATX bracket
• Cable combs (for 1x 24-pin ATX cable, 2x 8-pin EPS 12V cables and 1x 12V-2x6 cable)
• Cable ties
• PSU mounting screws
• Power cord
• Drawstring bag containing PSU modular cables

Aesthetics & Physical Features

Being a SFX form factored PSU, it's always a marvel how PSU manufacturers are able to squeeze that much power into a small package. Fit and finish feels pretty premium in my opinion, and the SP1000P measures in at 125mm (W) by 63.5mm (H) by 100mm (D). The 850W SP850P also has the same dimensions as the SP1000P, in case you're wondering.

Aesthetics wise, the SP1000P has a pretty run-of-the-mill appearance for a power supply unit, where we get a C14 power cable connector, power switch, and ventilation openings on the front of the PSU. Over on the rear, we get your usual connectors for the various modular cables that the SP1000P comes with.

On the left and right sides of the PSU, we get the Lian Li logo and model of PSU printed on, nothing out of the ordinary here.

The top panel of the PSU comes with detailed information on the electrical specs of the SP1000P, along with the usual safety notices and warnings. Over on the bottom panel, we catch a glimpse of the 92mm FDB cooling fan through horizontal ventilation slats, where we also get a Lian Li logo along one of the long edges to top things off.

Moving on, I like how Lian Li's included a SFX to ATX bracket that allows you to use this PSU in an ATX PC case, which again gives end-users lots of flexibility in terms of how to deploy the SP Platinum series of PSUs in their respective PC builds.

The PSU's modular cables come packaged in a nice cloth bag, and as can be seen from the table above, both the SP1000P and SP850P PSUs come with the same number and types of modular cables.

Some features to point out about the PSU cables, Lian Li's included an in-house custom-moulded connector design for the graphics card 12V-2x6 power cable. This is a good move I guess, seeing how the standard design for the 12V-2x6 connector's gotten a really bad rep, with no shortage of stories involving melted connectors due to improper insertion into the corresponding power connectors of power hungry graphics cards, such as those powered by high-end GPUs like the GeForce RTX 5090 and the RTX 4090. In that regard, Lian Li's take on the said connector seems to be pretty sturdy, where even with a significant amount of cable manipulation, I couldn't detect any unwanted movement for the pins contained within the connector housing - this should go a long way in helping to ensure good electrical contact when hooked up to your graphics card.

Also, the 12V-2x6 connectors have two colours, where the blue portion of the connector will fully disappear if the connector is properly inserted into the 12VHPWR connector of the graphics card, as per the photo above.

If you're able to see a tinge of blue as per the photo above, this indicates that the connector is not properly inserted.

Moving on, all of the PSU cables feature a flexible braided design that helps make cable management more effortless, where they also come with a textured plastic finish.

Also, we get cable combs for the 24-pin ATX power cable, the two 8-pin EPS 12V power cables, as well as for the 12V-2x6 graphics card power cable to further help things along from an aesthetics and tidiness perspective.

This being a SFX power supply unit for small form factor PC builds. it's great to see that Lian Li's included a C14 connector to C13 connector power cable that has a built-in power switch - this cable will definitely come in handy for PC builds where the PSU is mounted within the PC case with no direct access to the power switch, where end-users can simply toggle the power switch on this said cable to cut off power to their PC for say, hardware installation and maintenance purposes.

Specifications

Official Lian Li product page: https://lian-li.com/product/sp-platinum/

As can be seen from the table above, we get two power options to choose from, 850W and 1000W. The PSU is really compact in size, seeing as it's a SFX PSU after all, and as highlighted earlier, you can use this PSU in an ATX case with the included SFX to ATX mounting bracket. The SP Platinum lineup is ATX 3.1 compliant and conforms to the 80 PLUS Platinum standard for up to 92% efficiency at 50% load.

It also features a 92mm fluid dynamic bearing fan for cooling, where it comes with a fanless operation mode - when the PSU is under 40% load, the cooling fan switches off to reduce noise levels, which is great.

Warranty wise, Lian Li's got owners of the SP Platinum lineup of PSUs covered with a 10-year warranty, and if we were to pop over to PPLP's website, that is, a certifying body for PC hardware components such as PSUs, they've given the SP100P in particular a "Platinum" rating, which is great for a piece of mind.

Rounding off this section on PSU specs, it does seem like the SP Platinum lineup of PSUs could be based off an OEM design from a Chinese company called "GUANGDONG ZYPOWER" as per the line highlighted above in Korean that indicates them as the manufacturer. I can't be too sure of this though, as there doesn't seem to be much information on "GUANGDONG ZYPOWER" on the web.

Build Experience

To see how it's like building a small form factor PC with the SP1000P PSU, I'll be installing it as part of a demo PC build that features a Lian Li A3-mATX Wood Edition case with a tempered glass side panel, alongside some Uni Fan CL Wireless 120mm case fans, as well as a Lian Li HydroShift II LCD-C 360 CL AIO CPU cooler.

Installing the SP1000P inside of the A3-mATX case was pretty straightforward, all thanks to the PSU's really compact dimensions. As can be seen above, I have it mounted right behind the front panel of the A3 case with the PSU intake fan facing outwards.

Cable management was pretty easy given the flexible nature of the PSU's cables, which is further helped by the layout of the A3-mATX case.

As can be seen in the photos above, I've also installed the included cable combs to help make the cables look just a little neater.

All in all, the SP1000P was really easy to get set up in the A3-mATX case, and if anything, I'd say that this combination of parts is pretty sweet for anyone looking to build a high-end PC with a pretty small footprint. With the A3-mATX case, I even managed to install a 360mm AIO CPU cooler. that is, the Lian Li HydroShift II LCD-C 360 CL, and deck out the case with Lian Li's Uni Fan CL wireless case fans for lots of airflow.

Demo Build Aesthetics

Conclusion & Pricing

To sum up, the Lian Li SP1000P SFX power supply unit seems to be pretty good given its features and specifications, where it'd be right at home in a high-end and small form factor PC build for sure. I enjoyed using it as part of the demo build featuring Lian Li's A3-mATX PC case, and given the SP1000P's dimensions as well as the quality and flexibility of the included modular cables, you probably wouldn't have any issues using it in an even smaller case, perhaps a mini ITX case such as Lian Li's Q58 for instance.

In terms of pricing, the SP1000P has a MSRP of US$184.99, while the 850W variant, that is the SP850P, has a MSRP of around US$164.99

Get this PSU from Amazon: https://amzn.to/3XLhCmL (affiliate link)

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The PSU, PC case, AIO CPU cooler and case fans featured in this article were media samples provided by Lian Li.