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Pystar

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

  • Based on 682 reviews
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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Friday, Apr 17
Order within 1 hour and 51 minutes
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Size: 1000W


Features

  • 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.
  • Protection: Full protection including OVP/UVP/SCP/OPP/OCP.

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

Model Name: ES1000


Brand: Pystar


Compatible Devices: Personal Computer


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


Power Supply Design: Full Modular


Compatible Devices: Personal Computer


Connector Type Used on Cable: Floppy, SATA


Output Wattage: 1000


Form Factor: ATX


Wattage: 1000 watts


Cooling Method: Air


Power Supply Design: Full Modular


Number of Fans: 1


Fan Size: 140 Millimeters


Maximum Input Voltage: 240 Volts


Minimum Input Voltage: 100 Volts


System Bus Connector Type: 20+4 Pin


Model Name: ES1000


Brand: Pystar


Manufacturer: Pystar


UPC: 750139203574


Mfr Part Number: ES1000


Model Number: ES1000


Warranty Description: 10 year


Item Dimensions: 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, Apr 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • 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
    • Ten year warranty great support service…
Style: Power Supply
Seems well built with a 10 year warranty. That is unheard of these days. This is the second one i bought. I had an issue with the first one the electrical pci supply cord was defective.Support said no problem ship the power supply back we’ll ship you another, in 10 days i had a brand new power supply at my door. ... show more
Reviewed in the United States on February 11, 2026 by IPDAILY
    • Dead after 2 years
Style: Power Supply
This power supply really deserves the warning. It worked fine at first. It was stable and no complaints. But after just about 2 years of use and gaming, it suddenly failed. A psu should last MUCH MUCH longer than this. My previous power supply lasted almost 10 years until it started hinting its failures. With this, running simple games and everyday task were fine, but high demanding games like Arc Raiders crashes after 10-15 min. It's frustrating losing a game because of bad power supply and this has happened many times recently. Whole screen just goes blank. GPU and CPU temperature and voltage were good. I've since replaced this power supply and no more crashes. ... show more
Reviewed in the United States on December 4, 2025 by Arch
    • Excelente opción
Style: Power Supply
Importante tener una fuente que tenga un extra de poder para ir tranquilo con todas las conexiones. Para un usuario estándar y que use el PC para juegos, está perfecto. Logrará conectar las mejores gráficas, hacer OC del procesador, sin tener ningun lio con la entrega de energía. Yo la use para minería con 4 gráficas y funcionó perfecto el tiempo que lo hice. Ahora la tengo para un PC gamer y va sobrada. Super silenciosa al no tener que sobreesforzarse para entregar energía. ... show more
Reviewed in the United States on February 7, 2026 by Erik H.
    • Delivered in Good Condition on Time
Style: Power Supply
tis good, Go Gold or Go Home!
Reviewed in the United States on January 9, 2026 by David Dretcanu..Or Am I?
    • Great PSU on a budget!
Style: Power Supply
I am not one to skimp on power management, and this PSU is no exception despite its comparatively low cost to other 1000W PSUs. In the past, I have used PSUs from just about every retailer from EVGA to Corsair. This PSU has given me no problems supporting my 7800X3d CPU and RTX 4090. I have seen no signs of power failure or significant regulation issues. The PSU simply does its job. It did so well that I bought an additional PSU for a build I did in the summer. Don't hesitate to do the same! ... show more
Reviewed in the United States on March 29, 2024 by JW
    • Get the direction right for the main board plug.
Style: Power Supply
This PSU seems nice, however I ran into one problem, and it really had me worried. The 24 Pin main board connector will plug into the motherboard with either end. BUT, it will not power up if you have the wrong end plugged in. It took me a little while to figure this dilemma out, but when I reversed the main board connector and hit the switch, everything worked just like it should. I didn't have any problems with any of the other connections, just the 24 Pin main board connector. I would never have thought that it could be connected with either end. I see other reviews on here stating that their's didn't work. Try swapping ends for the main board connectors and try again. Note: the end with the narrow clip goes in the PSU, while the wider clip goes in the main board. ... show more
Reviewed in the United States on December 10, 2023 by MaccDaddy
    • Great
Style: Power Supply
Great. Thank you.
Reviewed in the United States on November 30, 2025 by N.T

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