I'm confused on what the difference between the non-focused flow SSO2 fans are and the focused flow ones, any help?

The NF-A14 is a Static Pressure Fan. Static pressure is the force the air can pushed out of the fan. High air flow is a measurement of cubic feet per minute of air the fan can move at its peak.Usually a High static pressure fan will have a High CFM also. The reasons to get a High static pressure fan is if you need to blow air through a radiator/CPU cooler or even Pull air through a screen filter. This are where you need the pressure. Unlike, say a rear exhaust fan, where nothing obstructs the airflow. This fan will be good for any placement you decide on in your case as it does move a ton of air no matter what. Just make sure you have it plugged into something that controls the speed based on the heat and not just running at 100% speed all the time as it will be loud at 3K RPM and almost silent at 1K or below.Also the NF-F14 has more airflow than the NF-F12.

Do these come with a Y-Cable?

No. Y-cables need to be purchased separately.

Can you use an ULNA on this Fans? At what RPMS they will run with it at full load?

These fans draw considerably more current than the non-commercial fans. I don't know the current handling capacity of the ULNA you are considering but, if it is one from Noctua's other fans, I would worry about its reliability. The fan is designed to be controlled by PWM and the minimum speed it can run at in that environment is about 1300 RPM (40-42% PWM). Wide open the fan runs at 2900-3000 RPM. These fans are designed for maximum air flow and, while they are pretty mechanically silent, the air flow will generate some noise - especially if you have a filter in front of the fan.

How loud is this thing / which model is quietist?

Doesn't serm load to me . I've got 2 in my server but i also have less hearing & tolerate my sever. I've never been told too loud, & you can throttle it if needed. Happy about cooling of it.

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Description

🖤 Cool like a pro, perform like a boss.

BUILT TO ENDURE - Rugged fibre-glass reinforced polyamide frame with IP52 ingress protection.
SMART SPEED CONTROL - 4-pin PWM connector adapts fan speed automatically for optimal airflow.
AWARD WINNING DESIGN - Flow Acceleration Channels and Acoustic Optimisation for superior cooling.
INDUSTRIAL GRADE POWER - Unleash up to 3000 RPM for relentless cooling performance.
WHISPER QUIET EFFICIENCY - Stay focused with noise levels capped at a subtle 41.3 dB.

The Noctua NF-A14 iPPC-3000 PWM is a heavy-duty 140mm cooling fan engineered for industrial and high-performance desktop use. Featuring a robust fibre-glass reinforced polyamide construction and IP52 certification, it delivers up to 3000 RPM airflow at a quiet 41.3 dB noise level. Its 4-pin PWM connector enables precise automatic speed control, ensuring efficient cooling with award-winning aerodynamic design for maximum airflow and minimal noise.

Specifications

Product Dimensions	5.51"L x 5.51"W x 9.84"H
Brand	Noctua
Power Connector Type	4-Pin
Voltage	12 Volts
Wattage	6.6 watts
Cooling Method	Air
Compatible Devices	Desktop
Noise Level	41.3 dB
Material	Fibre-glass reinforced PBT
Maximum Rotational Speed	3000 RPM
Air Flow Capacity	269.3 Cubic Feet Per Hour
EU Spare Part Availability Duration	5 Years
UPC	842431014412 808114327767 804067727944 801947310715 804904196162 809395327460
Global Trade Identification Number	04716123315452
Manufacturer	Noctua
Number of Items	1
Series	NF-A14 iPPC-3000 PWM
Item model number	NF-A14 iPPC-3000 PWM
Item Dimensions LxWxH	5.51 x 5.51 x 0.98 inches
Color	Black
Language	English
ASIN	B00KFCRF1A
Is Discontinued By Manufacturer	No
Date First Available	June 25, 2014

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