Best Deals This Week

Best Power Supplies Deals Online in the US (10 deals found)

Last Updated - March 15, 2026 Sort By:

Best Choice

New
CORSAIR RM850e ATX 3.1 PCIe 5.1 Ready Fully Modular 850W Power Supply – 12V-2x6 Cable Included, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.

$99.99 $144.99
Best Value

New
Thermaltake SMART 600W ATX 12V V2.3/EPS 12V 80 Plus Certified Active PFC Power Supply PS-SPD-0600NPCWUS-W
Delivers 600W Continuous output at plus 40℃. Compliance with Intel ATX 12V 2. 31 and EPS 12V 2. 92 standards

$44.99
New
DC Power Supply Variable, Bench Power Supply with Encoder Adjustment Knob, Output Enable/Disable Button, Adjustable Power Supplies with USB Quick-Charge, Short Circuit Alam (30V 10A Black)
High-precision Encoder Knob: Different from general knobs, this DC power supply has a precise encoder knob. You can press the knob to switch each digit, and then turn the knob to customize each digit in the range of 0-9. Set the voltage or current you want more accurately.

$51.99
New
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.

$209.99
Used
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.

$161.27
19% Off

New
Thermaltake Smart 700W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0700NPCWUS-W
RELIABLE POWER - Delivers consistent and stable power with Active PFC, ensuring your system runs smoothly and efficiently, supported by comprehensive OVP, OPP, and SCP protection.

$54.99 $67.99
21% Off

New
Jesverty DC Power Supply Variable, 0-30V 0-10A Adjustable Switching DC Regulated Bench Power Supply with High Precision 4-Digit LED Display, 5V/2A USB Port, Coarse and Fine Adjustment SPS-3010
1️⃣【4-Digit Display & Power Calculation】: The Jesverty SPS series features a big bright 4-digit LED display that shows measured values of V／A／W that the unit outputs in real-time. The display resolution is up to 0.01V, 0.001A, and 0.1W.

$46.74 $58.99
11% Off

New
Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W
RELIABLE POWER - Delivers stable and consistent 500W output, ensuring your system runs smoothly even under demanding workloads, backed by Thermaltake's 5-year warranty for peace of mind.

$39.99 $44.99
New
APC UPS Battery Backup & Surge Protector, 600VA Backup Battery Power Supply, BE600M1 Back-UPS with USB Charger Port
Uninterruptible power supply (UPS) with 600VA / 330W battery backup power

$83.99
New
MSI MAG A850GL PCIE5, Fully Modular Compact Gaming 850W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, 10 Year Warranty
80 PLUS GOLD CERTIFIED

$119.66 $129.99

10 Power Supplies deals are available from: Amazon stores, starting from $39.99.
The biggest discount we found is 31% on CORSAIR RM850e ATX 3.1 PCIe 5.1 Ready Fully Modular 850W Power Supply – 12V-2x6 Cable Included, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black at Amazon.
The lowest price we found is $39.99 while the highest is $209.99.
Prices for the best Power Supplies deals average at $91.36.
Last updated on March 15, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Supplies.