SilverStone Attis 650R Bronze 650W ATX 3.1 Power Supply – Black

ATX 3.1 Compliant – Built for Next-Gen GPUs

The SilverStone Attis 650R is fully compliant with ATX 3.1 standards and engineered to support up to 2X power excursion and 2X total power excursion, ensuring rock-solid stability with next-generation graphics cards. With 650W of 24/7 continuous power output rated for operation at up to 50°C, the Attis 650R delivers reliable, consistent power for gaming rigs, workstations, and high-performance PC builds.

80 Plus Bronze Efficiency with Japanese Primary Capacitor

Certified 80 Plus Bronze with efficiency ranging from 82% to 85% at 20% to 100% loading, the Attis 650R minimizes heat generation while considerably reducing electricity consumption. The Japanese primary capacitor ensures exceptional reliability and longevity, while the advanced Active PFC + Double Forward + DC-to-DC design delivers stable voltage regulation across all rails for consistent component performance.

Powerful Single +12V Rail Design

The Attis 650R features a robust single +12V rail delivering up to 54.1A (649.2W combined), providing ample power for high-end component upgrades and overclocking. The combined +3.3V and +5V output delivers 100W, with additional +5VSB (3A) and -12V (0.3A) rails for comprehensive system power delivery across all voltage requirements.

Silent 120mm Cooling Fan – 18 dBA Minimum

Cooling is entrusted to a silent 120mm fan that offers exceptional airflow with an ultra-low 18 dBA minimum noise level. Whether idling on the desktop or under full gaming load, the Attis 650R keeps acoustic levels comfortably low. The power supply is rated for an impressive 100,000 hours MTBF, ensuring long-term durability and reliable operation across years of service.

Flat Cable Design – Superior Flexibility

All cables feature a flat design that provides much greater flexibility compared to traditional sleeved cables, allowing for tighter folding and cleaner cable management. The connector set includes 1 x 24/20-Pin motherboard, 2 x 4+4-Pin ATX 12V, 4 x 8/6-Pin PCIe, 6 x SATA, and 3 x 4-Pin Peripheral connectors — providing comprehensive connectivity for modern and legacy components alike.

Comprehensive Protection Suite

The Attis 650R includes a full complement of advanced protection features: Over Power Protection (OPP), Over Voltage Protection (OVP), Short Circuit Protection (SCP), and Under Voltage Protection (UVP). These safeguards protect your valuable components from electrical anomalies and ensure safe, stable operation under all conditions.

Compact ATX Form Factor – Broad Compatibility

Measuring just 140mm in depth (150 x 86 x 140 mm) and weighing 1.52 kg, the Attis 650R fits comfortably in a wide range of ATX and micro-ATX chassis. Available in Black (lead-free paint) and White color options. Supports universal input voltage from 90V to 264V with Active PFC achieving PF greater than 0.9 at full load.