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Overview

Our new GSK ATX3.1 power supplies are formally certified for ATX 3.1 compliance, meeting the high standards for reliability and power efficiency, and ensuring the utmost level of quality and performance.

Antec GSK1200 US 1200W Full-Modular 80 PLUS Gold Power Supply

Model: GSK1200 US
Web Code: 19867587
Sold and shipped by | 4.6 seller rating (477 reviews)

Available for deliveryAvailable online only

Delivery times vary by location. Most Marketplace items leave sellers' locations within 2 business days. Allow additional time for shipping.

Seller Return Policy

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Warranty

Check with the manufacturer for details.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • GSK1200 US Power Supply

Introducing the GSK ATX 3.1 power supply, engineered for ultimate performance and stability for gamers and enthusiasts. With advanced features such as ATX 3.1 and PCIe 5.1 support, high-quality Japanese capacitors, exceptional stability, and 80 PLUS Gold-certified efficiency, you can expect outstanding power delivery for your system. The PhaseWave Design ensures consistent, reliable output, while the 120 mm FDB silent fan provides efficient and quiet cooling. The fully modular design allows for easy cable management and customization, and the Zero RPM Manager enables advanced thermal control to balance silent operation with effective cooling. Meanwhile, the CircuitShield suite of industrial-grade protections ensures safe and dependable power in any environment. The GSK ATX 3.1 is the ideal choice for building a powerful, efficient, and reliable PC for both gamers and professionals.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.

Shipping Charges

Free standard shipping may be available on orders over a minimum amount (before taxes, fees, and promo codes). Shipping charges may vary based on item size and your shipping address. Want a shipping charge estimate? Simply add an item to your cart, then access the cart and enter your postal code in the shipping estimate section.

Processing Time

Most items ship within 2 business days after an order is placed*. Allow additional time for shipping to your address.
*Please note: If an item you ordered becomes unavailable, you'll be notified and a full refund will be processed within 2 business days.

Shipping Area Restrictions

Shipping is not available in the following areas*:
  • Yukon
  • Northwest Territories
  • Nunavut
*Please note: Shipping area restrictions may vary for large items. If an item can't be shipped to your address, we'll let you know during the checkout process.
Product Category
Computer components
Return/Exchange Period
30 days
Condition
Unopened

We can only acceept returns that are in their original packaging and do recommend customers check manufacturer's warranties for exclusions.

Learn more about returning a Marketplace product