SilverStone Technology 550 Watt Semi-Modular 80 Plus Gold Computer Power Supply

Out of Stock
Ships from United States Arrives in 7-14 business days

Free Standard Shipping on orders over 89

Item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Delivery:
29
July2026
-
07
August2026
SilverStone Technology 550 Watt Semi-Modular 80 Plus Gold Computer Power Supply

SilverStone Technology 550 Watt Semi-Modular 80...

$260.38

Product Details
Product Specification

Model Name:                                PS-ET550-HG
Brand:                                         SilverStone Technology
Compatible Devices:                    Personal Computer
Connector Type:                           PCI Express
Output Wattage:                            550
Wattage:                                    550 watts
Cooling Method:                               Air
Item dimensions L x W x H:          6.3 x 5.91 x 3.39 inches
Item Weight:                               4.4 Pounds
Power Supply Design:                 Semi-Modular

  • High efficiency with 80 PLUS Gold certification. 24/7 continuous power output with 40°C operating temperature
  • Semi-modular cables facilitate cable management. All-black flat cables design
  • Class-leading single +12V rail
  • Silent running 140mm fan with 18 dBA
  • PCIe 8pin and PCIe 6pin connectors support

ET550-HG

Logo
The Essential (ET) PSU Series

SilverStone's ET Series of ATX-class power supplies offers an ideal blend of features and value in the 550W-750W PSU market. The ET Series comprises four tiers:

  • "B" - Bronze with fixed cables
  • "G" - Gold with fixed cables
  • "HG" - Gold with semi-modular cables
  • "MG" - Gold with fully-modular cables

The SilverStone ET550-HG Power Supply

The ET550-HG, the premier 550W power supply in the ET lineup, is the ideal choice for just about any mainstream PC build, from fully-equipped office PCs to high-end gaming PCs. It provides the following impressive features:

  • 80 Plus Gold efficiency
  • Semi-modular cables for easier cable management
  • Quiet 140mm fan
  • Powerful single +12V rail
  • Japanese primary capacitor

fan

cables

pcie

140mm fan for cool and quiet operation

Semi-modular design means only the most essential cables are fixed in place

Dual 6+2-pin PCIe power cables are included


Product Description

SilverStone created semi-modular enabled Essential Gold series power supplies to provide enthusiasts with affordable, but highly efficient choices when building PCs. ET550-HG, ET650-HG, and ET750-HG have 80 PLUS Gold efficiency with single +12V rail and the ability to provide 24/7 40 Degree Celsius continuous power output. In addition, they are equipped with 140mm silent fan and semi-modular, all-black flat cables for quiet operation and improved cable management respectively. Systems with high level graphics cards can be powered easily and efficiently by Essential Gold series PSUs' standard 8pin/6pin PCIe connectors, making them excellent choices for those seeking the best enthusiast value for the money.

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

Product Specification

Model Name:                                PS-ET550-HG
Brand:                                         SilverStone Technology
Compatible Devices:                    Personal Computer
Connector Type:                           PCI Express
Output Wattage:                            550
Wattage:                                    550 watts
Cooling Method:                               Air
Item dimensions L x W x H:          6.3 x 5.91 x 3.39 inches
Item Weight:                               4.4 Pounds
Power Supply Design:                 Semi-Modular

  • High efficiency with 80 PLUS Gold certification. 24/7 continuous power output with 40°C operating temperature
  • Semi-modular cables facilitate cable management. All-black flat cables design
  • Class-leading single +12V rail
  • Silent running 140mm fan with 18 dBA
  • PCIe 8pin and PCIe 6pin connectors support

ET550-HG

Logo
The Essential (ET) PSU Series

SilverStone's ET Series of ATX-class power supplies offers an ideal blend of features and value in the 550W-750W PSU market. The ET Series comprises four tiers:

  • "B" - Bronze with fixed cables
  • "G" - Gold with fixed cables
  • "HG" - Gold with semi-modular cables
  • "MG" - Gold with fully-modular cables

The SilverStone ET550-HG Power Supply

The ET550-HG, the premier 550W power supply in the ET lineup, is the ideal choice for just about any mainstream PC build, from fully-equipped office PCs to high-end gaming PCs. It provides the following impressive features:

  • 80 Plus Gold efficiency
  • Semi-modular cables for easier cable management
  • Quiet 140mm fan
  • Powerful single +12V rail
  • Japanese primary capacitor

fan

cables

pcie

140mm fan for cool and quiet operation

Semi-modular design means only the most essential cables are fixed in place

Dual 6+2-pin PCIe power cables are included


Product Description

SilverStone created semi-modular enabled Essential Gold series power supplies to provide enthusiasts with affordable, but highly efficient choices when building PCs. ET550-HG, ET650-HG, and ET750-HG have 80 PLUS Gold efficiency with single +12V rail and the ability to provide 24/7 40 Degree Celsius continuous power output. In addition, they are equipped with 140mm silent fan and semi-modular, all-black flat cables for quiet operation and improved cable management respectively. Systems with high level graphics cards can be powered easily and efficiently by Essential Gold series PSUs' standard 8pin/6pin PCIe connectors, making them excellent choices for those seeking the best enthusiast value for the money.

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges first item USD 6.99 and additional item USD 3.0 each. Standard International Shipping from United Kingdom, Germany, Italian and Japan to the United States charges first item USD 11.99 and additional item USD 4.0 each.

Import Duty: Everymarket collects applicable duties and taxes on goods imported into the U.S. at checkout, it's calculated based on the goods value multiply by the rate. For United Kingdom and China goods is 10%, Germany, Italian and Japan goods is 15%. We are committed to making your U.S. shopping experience simple and transparent. The method of delivery—either Delivered Duty Paid (DDP) or Delivered Duty Unpaid (DDU)—depends on whether duties and taxes are collected at the time of your purchase.

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. Average transit times to the United States is 3 - 7 Business days and average transit times to International is 7 - 14 Business days 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs:
    - If your return is approved due to a defective, damaged, or incorrect item, we will provide a prepaid return shipping label at no cost.

    - If the item has no quality issues and matches the product listing and description, please contact our Customer Service team before returning it. Once your return is authorized, you must return the item according to the provided instructions. In this case, the return shipping cost is the customer's responsibility.

    - We are not responsible for return shipping costs for items returned without prior authorization.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Please contact us to get return labels.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 (800) 660-3783

  • Email: cs@everymarket.com

 

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