# CHIEFTEC CTG-550C Power Supply Unit 550 W ATX Semi-Modular Black

**URL:** https://aio.lv/en/product--chieftec-ctg-550c--149316
**Data updated:** 2026-11-02 18:20 (EET)
**Category:** Server Parts & Components
**Manufacturer:** CHIEFTEC
**Manufacturer code:** CTG-550C
**EAN:** 4710713239364
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 100.99 €
**Prices and availability valid until:** 2026-12-12 23:59
**Price without VAT (21%):** 83.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--chieftec-ctg-550c--149316

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.12.2026 | free |
| Pickup points | 17.12.2026 | 1.99 EUR |
| Courier delivery to door | 17.12.2026 | 9.07 EUR |

## Summary description

The CHIEFTEC CTG-550C is a 550 W ATX power supply unit featuring semi-modular cabling, 80 PLUS certification, active cooling with a 12 cm fan, and active PFC. Designed for PC systems, it includes 230 V input, 20+4 pin ATX motherboard connector, and multiple SATA and PCIe connectors. Available with delivery in Riga, Latvia, and across Europe.

## Long description

The CHIEFTEC CTG-550C Power Supply Unit 550 W ATX Semi-Modular Black is a reliable and efficient power solution designed for standard PC systems. Delivering 550 watts of total power, this ATX power supply features an 80 PLUS certification and active Power Factor Correction to ensure stable energy delivery while minimizing waste. Its semi-modular cabling system helps maintain a clean computer interior by allowing users to connect only the necessary cables, improving overall airflow within the chassis.
Advantages
This power supply combines dependable performance with a practical semi-modular design that simplifies cable management during PC assembly. It operates efficiently under standard 230 V electrical inputs and includes a quiet 12 cm active cooling fan that maintains optimal operating temperatures. Built-in compliance standards such as CE, CB, FCC, and RoHS ensure safety and reliability for everyday computing tasks.
Suitable for
Building or upgrading standard desktop PC systems
Office and home workstations requiring stable 550 W power delivery
Setups benefiting from semi-modular cable management for reduced clutter
When it may not be suitable
This power supply is not intended for high-end enthusiast gaming rigs equipped with multiple high-power graphics cards that require significantly higher wattage. It is also unsuited for industrial server deployments that demand redundant power supplies or non-standard form factors.
Key specifications
550 W total power output
ATX form factor and ATX-12V 2.3 standard
Semi-modular cabling system
80 PLUS efficiency certification
Active PFC with 230 V AC input
12 cm active cooling fan
Connectors include 24-pin ATX, 8-pin EPS12V, 8-pin PCI Express, SATA, and Molex
How to use
Mount the power supply unit into the designated lower or upper compartment of a compatible ATX PC case using the included screws. Connect the 24-pin ATX motherboard connector and the 8-pin EPS12V connector to the respective ports on your motherboard. Attach only the required semi-modular cables for your storage drives and graphics cards, keeping unused cables stored safely outside the main airflow path. Plug the power cord into a grounded 230 V wall outlet before turning on the system.
What to consider before purchase
Verify that the 550 W capacity meets the total power requirements of your processor and graphics card
Check your PC case dimensions to ensure standard ATX power supply compatibility
Confirm that the included PCIe and SATA connectors match your hardware components
Usage recommendations: Ensure adequate ventilation around the PC case intake and exhaust areas to allow the 12 cm fan to cool the unit effectively. Avoid overloading the 550 W capacity by calculating the combined peak wattage of all connected system components.

## Specifications

| Feature | Value |
|---|---|
| Certification | CE, CB, FCC |
| Mean time between failures (MTBF) | 100000 h |
| Height | 87 mm |
| Width | 150 mm |
| Depth | 140 mm |
| Product colour | Black |
| Purpose | PC |
| Parallel processing technology support | 2-Way CrossFireX, 2-Way SLI |
| Input current | 6 |
| Package type | Box |
| Number of fans | 1 fan(s) |
| Efficiency | 85 % |
| Cooling type | Active |
| Motherboard power connector | 20+4 pin ATX |
| Floppy drive power connector | 2 |
| Number of SATA power connectors | 6 |
| Peripheral (Molex) power connectors (4-pin) | 4 |
| EPS power connector (8-pin) | Yes |
| Power protection features | Over current, Over voltage, Overheating, Overload, Short circuit, Under voltage |
| Fan diameter | 120 mm |
| Power factor | 0.9 |
| CPU P4 connector (4-pin) | 1 |
| PCI Express power connectors (6+2 pin) | 2 |
| ATX version | 2.3 |
| Fan location | Top |
| 80 PLUS certification | 80 PLUS |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 130 W |
| Combined power (+12V) | 456 W |
| Combined power (+5V) | 130 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 25 A |
| Max output current (+5V) | 22 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| AC input frequency | 50 |
| AC input voltage | 230 |
| Cabling type | Semi-Modular |
| Max output current (+12V2) | 25 A |
| Max output current (+12V1) | 25 A |
| Total power | 550 W |
| Harmonized System (HS) code | 84733020 |
| Power supply unit (PSU) form factor | ATX |
| Compliance certificates | RoHS |

## FAQ

### How much does the CHIEFTEC CTG-550C 550W ATX Power Supply Unit cost, and is it available for purchase?

The price is 100.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 59 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.12.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CHIEFTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CHIEFTEC service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for CHIEFTEC CTG-550C 550W ATX Power Supply Unit?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/149316/70850658_large.webp