Nesteq ASM X-Zero 500W Heat-piped Cooled Semi-Fanless PSU

Nesteq's X-Zero power supplies offer minimum possible running noise along with market-leading quality, three year warranty and the convenience of their EECS modular connection system. Each PSUs also features a build in PSU tester so you can easily diagnose any problems, as well as heat-pipe cooling to aid in a cooler running PSU.

0dB(A) Semi-Passive - Advanced Silent Mode (ASM)
ASM technology contributes to develop a silent power supply. When the temperature within the power supply rises above 65C, an automatic fan regulation will be activated to adjust the fan speed (RPM) of the 120mm fan. NesteQ aims to provide a comfortable and quiet computing experience, even if the PC is running at full load. Only when the temperature rises above 65C, the fan will spin for a short time to dissipate the heat.

One Step Check - Power Monitoring Panel
The "Power Monitoring Panel" on each ASM X-Zero power supply indicates if there are problems with the most important power output rails. If there is a power failure on one of the +12V, +5V, +3.3V or +5Vsb rails, the green LED will turn off.

Enhanced Easy Connection System
EECS, short for Enhanced Easy Connection System, is the next evolution of the modular power supply. Just like an "ordinary" modular PSU, the PSU has sockets rather than fixed wires for powering the components installed in your PC, and what makes a modular PSU so great is that you only need to connect the cables you require for powering the system. However, Nesteq's EECS PSUs take this one step further by allowing you to connect different power connectors on the same cable rather than using two separate cables. For example, the image below shows one cable from the EECS PSU supplying power to 2 x 4-pin Molex, 2 x SATA and 1 x floppy device. A non-EECS modular PSU would require at least two cables to provide power to these devices. This feature further reduces the amount of cables used inside the system, which makes things nice and tidy!

Reverse Install Possible - Stack Effect Cooling Solution
By turning the power supply unit upside down (fan facing upwards), the created low pressure can draw cold air from outside to enhance the passive cooling effect up to 42% at 0dB(A) ASM-mode. This leads to even less fan operation and a prolonged period of absolute silence.

+12V Power Plus Connection
The ASM X-Zero power supply series applies the patented +12V Power-Plus technology. This revolutionary technology makes it possible to supply the most important components (mainboard, graphics card) with a particularly resilient power source.

Features
1. Highly efficient heat pipe cooling
2. Active PFC (Power Factor Correction)
3. Up to 89% Efficiency
4. ATX12V Version 2.2, EPS12V Version 2.91
5. +12V Power - Plus Technology
6. Advanced Silent Mode (ASM) Technology
7. Stack Effect Cooling Solution (SECS)
8. Power Monitoring Panel
9. Enhanced Easy Connecting System (EECS)
 

Specifications
Model number - XZ-500
ATX12V Version - 2.2 
EPS12V Version - 2.91 
+3.3V maximum output current - 24 A 
+5V maximum output current - 20 A 
+12V1 maximum output current - 20 A 
+12V2 maximum output current - 20 A 
+12V3 maximum output current - 20 A 
+12V4 maximum output current - 20 A 
+12V5 maximum output current - N/A 
+12V6 maximum output current -  N/A
+5VSB maximum standby current - 2.5 A 
Combined maximum output +12V - 420 W 
Combined maximum output +3.3V / +5V - 130 W 
20+4 pin ATX connector - Yes 
ATX12V 4-pin support - Yes 
EPS12V 8-pin support - Yes 
PCI-E support (6+2 pin) - Yes (x2) 
SATA connectors - 4
Number of hard drive connectors - 4 
Number of floppy drive connectors - 2 
Fan connection cable - 1 x 5V and 1 x 12V (both can power 3 fans each) 
PSU Fan speed monitor - Yes 
Fan speed control - Automatic, manual or semi-passive 
Acoustic noise level - From 0dB(A) to a Max of 28 db(A) in extreme conditions 
Dimensions - 86 x 150 x 160 mm (HxWxD) 
Power Factor Correction - Active PFC 
Mains input voltage - 110-240 VAC, 50-60 Hz 
Mains input voltage selection - Auto 
Over voltage protection - Yes, on all outputs 
Short circuit protection - Yes, on all outputs 
Safety approvals - RoHS, CE, TUV, FCC 
Master power on/off switch - Yes 
Length of motherboard power cable - 60 cm (approx)