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Pystar

1000W Power Supply 80+ Gold Full Modular PSU, ATX 3.0 & PCIE 5.0, ES1000

Based on 715 reviews
Condition: New
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$79.98
Holiday Deal · 64% off was $224.99

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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Friday, Nov 13
Order within 17 hours and 54 minutes

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At a glance

Condition
New
Size
1000W
Model
ES1000
Dimensions
6.29 x 5.9 x 3.38 in
Connector Type
Floppy, SATA
Form Factor
ATX
Wattage
1000 watts
Warranty
10 year
Works with
Personal Computer

Features 5

  • 80 Plus: 1000W with 80 Plus Gold certified, reach 90% efficiency or higher under typical loads.
  • Full Modular: Full modular to improve airflow and reduce clutter,manage cables more easily.
  • DC To DC structure: DC To DC structure makes the power output more stable and safe.
  • Quiet Fan: 140mm fan keep quiet while maintaining good heat dissipation.

Description

Pystar's PSU manufactured with high-quality components, it can provide clean and reliable power for a PC gaming system. The ES1000 has outstanding electrical performance with an ultra-stable voltage and extremely clean power output. PACKAGE ACCESSORIES: ES1000 power supply x1, AC power cord x1, screws x4, quick test tool x1, black cable tie x8, manual + quick install guide x1MODULE CABLES x8: ------PCI-E：1 Cable with 2 PCI-E Connector 8(6+2) PIN 1 Cable with 2 PCI-E Connector 8(6+2) PIN 1 Cable with 1 PCI-E Connector 8(6+2) PIN------CPU： 1 Cable with 1 CPU Connector 8 PIN+ 1 CPU Connector 8(4+4) PIN------SATA： 1 Cable with 3 SATA Connector 1 Cable with 3 SATA Connector ------Motherboard： 1 Cable with 1 Mainboard Connector 20+4 PIN ------Molex： 1 Cable with 3 Molex Connector 4 PIN + 1 FDD Connector 4PINSPECIFICATIONModel: ES1000Modular: Full ModularWatt: 1000WType: ATX PSU80 Plus: Gold CertifiedFan's Size: 140mm/4.72inchVAC Input: 100V-240VWarranty: 10 yearsProtection: Over Voltage Protection(OVP); Under Voltage Protection(UVP); Over Power Protection(OPP); and Short Circuit Protection(SCP); Over Current Protection (OCP). Product net weight (without package): 1.51KG.Product size (without package) : 160(L)150(W)86(H)mm

Specs 21

Model Name ES1000
Brand Pystar
Connector Type Floppy, SATA
Output Wattage 1000
Form Factor ATX
Wattage 1000 watts
Cooling Method Air
Item dimensions L x W x H 6.29 x 5.9 x 3.38 inches

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 13

Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

quality
Style: Power Supply
great power supply and easy to install
Reviewed in the United States on September 1, 2026 by joel
Overall the best PSU I've owned
Style: Power Supply
This was a dream. I'm graduating from an old monster 1200W PSU that I had in my full tower case. Unfortunately, that thing was too big to fit into modern cases, especially now they all use that annoying PSU "sleeve" setup inside. So I needed something smaller, and would not compromise on getting something that was fully modular, and had to be at least 1000W because I have the max internal hard drives I can stuff inside my case. This power supply is quiet, the cords and connectors are high quality, flexible enough for good cable management, and tight connections. The back where the cables connect to the power supply are nicely colour coded for which type cable goes where if you can't get a good full-on look at it to read the text labels because you already installed it in the case then realize you want to swap a couple connectors. Not that I did this! ( I totally did this) It's super quiet. I upgraded from a bronze standard to this gold one and my power bill already dropped a bit. I've already had a power outage and 2 monsoon storms and the protections worked perfect. The metal exterior is nice and firm, not easy to bend just pressing your thumb against it. I especially loved that it came with a tester connector that you can easily plug in so that there's no nervous paper clip action going on. Finally, the price is incredible value. I was on the tightest budget imaginable and desperate to get something modular, 1000W, and small enough to fit and this was the best value ever! ... show more
Reviewed in the United States on November 1, 2022 by LivEm
Defective and opened mess. Almost ruined my pc.
Style: Power Supply
Was sent a defective product in a damaged box. Wasn't even packaged, PSU banging around, just screws rolling in box and stuck inside the PSU, and cables just thrown in there tangled up. Was supposed to be a brand new unit but ended up getting a broken unit. Could have ruined my whole PC, luckily it just clicked and didn't even power the rgb up. BTW I've built quite a few PCs with little issue. All cables were ran and plugged in correctly. ... show more
Reviewed in the United States on June 24, 2026 by Ben King
Recommend
Style: Power Supply
Super easy to connect, fit perfectly in the computer, great price super good appearance nice color
Reviewed in the United States on June 17, 2026 by Chalia Romal
Thumbs up after three years.
Style: Power Supply
It's now 6/2026 and this has been working well since 3/2023. Replaced two name brand power supplies which ended up partially working (took months to figure that out...) No issues with noise or heat in my sound dampened quiet pc. Doing well for games and audio applications.
Reviewed in the United States on June 10, 2026 by Mel
Great PSU for the price
Style: Power Supply
This is a great PSU for the price. It runs very quiet and supports 1000w for a lot of the newer GPUs. It is made of great material and fit perfectly in my case. There are some negative reviews about it not coming with a lot of cables but that's false. It came with more than enough cables for my entire set up and then some extras. There are also some negative reviews about it frying certain hardware but that's false as well. They probably didnt read the manual. Near each of the ports it states what the port is used for (Ex. CPU, PCIe slot, SATA, etc.). Read the manual and youll be just fine. 5 stars for me! ... show more
Reviewed in the United States on May 9, 2022 by Amazon Customer
Needs to either come with more cables or ability to purchase cables seperately
Style: Power Supply
Bought the ES1000. So far, it is has been a great PSU! It may not be one of the bigger brand names, but it is still quality built! It has no frills, like RGB fans, which is fine with me because i'm looking for function over form. This was decently priced, given that it's a 1000W PSU (at the time of this review, it was 135.99 with a $40 off instant discount, so like $96). The one thing that I am concerned with is how many cables it comes with. If your running multiple GPUs, then what it comes with won't work for you. Fortunately, I'm only running one 1080GTX because most of my games don't really support SLI, but now I need an extra one of the double PCIe cabled that it comes with because the single one is useless (most NVidia cards now take an 8-pin plus a 6-pin plug anyways). So maybe if they either offered to include two of the PCIe double cables, or create a seperate listing for individual cables so that you can purchase more (it would be nice to have another molex cable than the single cable supplied). There are more receptacles on the PSU than the number of included cables, so it should work. ... show more
Reviewed in the United States on October 17, 2021 by Bob
READ THE REVIEWS FIRST BEFORE BUYING
Style: Power Supply
Just got it today and yeah doesn't even turn on. I thought it was just me so I plugged it in different outlets in my house. It's that sorry psu. Do not buy this. Read all the reviews first.
Reviewed in the United States on July 8, 2026 by Alfie D.
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