AC INFINITY
AC Infinity Multifan S2, Quiet USB Cooling Blower, 120MM
Pickup available at Bansley Store
Usually ready in 24 hours
Shipping & Returns
Our current shipping rates are as follows:
- UK Orders Over £50 – Free Next Day Delivery
- UK Orders Under £50 – £8 (Next Day Delivery)
- UK Orders Next Day AM – £20
- UK Orders Saturday AM – £30
- International Orders DAP – Select between UPS or Fedex and we'll sort the rest. (All duty paid by us prior to shipping)
All parcels are fully tracked. Once your order has been dispatched, you’ll receive an email containing your tracking number.
If your order is classed as an oversized item OR deemed extra heavy, additional heavy shipping duty will be added at checkout when selecting your shipping options.
Returns
We want you to be completely satisfied with your purchase, but if you change your mind, you may cancel your order within 14 days of receipt for a full refund, provided the items are unused and in resalable condition.
Once your cancellation has been confirmed, you must return the items within 14 days, ideally in their original packaging.
Click & Collect
Order online and collect directly from our Sheffield OR Barnsley store. Once your order is ready, you’ll receive an email or phone confirmation with collection details. Please wait for confirmation before travelling to ensure your order is prepared.
Please have your order number ready to give to a member of staff when you arrive.
Sheffield Store:
GSH Retail Ltd
Unit 5, 230 Woodbourn Road
Sheffield
S9 3LQ
Barnsley Store:
GSH Retail Ltd
Unit 6, Rockingham Business Park
Rockingham Row, Birdwell
Barnsley, S70 5TW
Local Same Day Delivery Service
Our man in a van!
Same-Day Delivery Service
Enjoy fast, reliable, and fully discreet same-day delivery with Green Spirit when you order from our Sheffield store area.Whether you shop online or
in-store, we make getting your items easy,convenient, and secure.
Order Online
When placing your order through our website, simply select the Same-Day Local Delivery option at checkout.
- Free Same-Day Delivery on orders over £250.00
- Available customers within a 3-mile radius of our Sheffield store (S9 3LQ)
- Orders under £250.00 can still be delivered the same day for a £50.00
flat fee
Your order will be prepared and delivered directly to your
door the very same day, using our discreet delivery service.
Order In-Store
If you prefer to shop in person, visit our Sheffield
location to browse, purchase, and arrange delivery.
- Pay
in full for your items in-store - Choose
a delivery time and date that suits you best - Our
team will ensure a smooth and convenient handover
Discreet Delivery Promise
We understand the importance of privacy.
- All
our delivery vans are plain and unmarked, with no company
branding - Parcels
are packaged in plain or black wrapping for complete discretion
Delivery Requirements
To ensure everything runs smoothly:
- Customers
must be present at the agreed delivery time - Drivers
cannot wait for extended periods - If
the customer is not available, items will be returned to the store and a £50.00
redelivery fee will apply
Upon
delivery, we will request a order number, name and signature to
confirm receipt
Discreet Shipping
All orders from GSH Retail Ltd are packed securely and shipped in Plain unbranded boxes for your privacy. We understand that discretion is important, so no external markings or product details are visible on the packaging.
Each parcel is also wrapped in durable black film and sealed with fragile tape to ensure both security and protection in transit.
We take great care to make sure your order arrives safely, discreetly, and in perfect condition — every time.
Methods Of Payment
We accept a wide range of secure payment options for your convenience when shopping with GSH Retail LTD
You can pay using:
Visa, Mastercard, American Express, and Discover
Apple Pay, Google Pay, and Shop Pay
PayPal – Fast and secure online checkout with buyer protection
Klarna – Flexible payment options, including Pay in 3 instalments or Pay Later
Clearpay – Split your purchase into four interest-free payments
Weston Union– Supported for international customers
Cash In The Post - This is at your own risk! Please make sure it is signed for, tracked, and insured.
Manual Bank Transfer - Contact a member of staff to organise paying via bank transfer.
All transactions are processed securely through Shopify’s encrypted checkout. Your payment details are never shared directly with us.
Once your order is placed, you’ll receive an order confirmation email, followed by tracking details once your parcel has been dispatched.
Finance Options
We offer flexible finance options to make purchasing easier. You can choose to spread the cost of your order, all three options are interest-free and give you the flexibility to manage your payments in a way that suits you.
PayPal Pay in 3
PayPal Pay in 3 allows you to divide your purchase into three equal interest-free payments over two months. The first payment is made at checkout, followed by two automatic payments each month.
It is available on orders between £30 and £2,000, and approval is completed instantly through your PayPal account. You can view, manage, or make payments easily through the PayPal app or your online account.
Shop Pay
Shop Pay Installments lets customers pay for an order in smaller increments over time.When available, Shop Pay Installments is a great option to help you maximize your budget for orders between the following amounts, depending on your location:
Klarna
Klarna offers two flexible ways to pay. With Pay in 3 instalments, your order total is divided into three equal payments, taken every 30 days with no interest or fees when paid on time. Alternatively, you can choose Pay Later in 30 Days, allowing you to receive your order first and settle the balance within 30 days. Klarna provides instant approval at checkout, and all payments can be managed securely through the Klarna app.
Clearpay
Clearpay lets you spread the cost of your purchase into four equal interest-free payments, taken automatically every two weeks. The first instalment is paid at the time of purchase, and the remaining three are collected automatically over six weeks. Clearpay is available for orders between £30 and £1,000 and can be managed easily through the Clearpay app.
Important Information
All finance options are subject to eligibility and approval by the provider. Late or missed payments may affect your credit score, so please ensure funds are available when payments are due. For details about eligibility, limits, or payment schedules, please refer to the provider’s website or app.
Earning Points & Rewards
At GSH Retail we believe loyalty should be rewarded - Our Points & Rewards scheme allows you to collect points every time you shop and redeem them for discount codes to use on future purchases.
When you make a purchase through our website, you’ll automatically earn points based on the value of your order. These points are added to your account and can be saved or redeemed whenever you choose. Once you’ve collected enough points, you can exchange them for a unique coupon code that can be applied at checkout to reduce the cost of your next order.
Earn 5 Points for every £1 spent
Redeem 100 Points for £1 Store Credit
Your points never expire as long as your account remains active, and you can track your balance easily through your customer account dashboard. It’s our way of saying thank you for choosing GSH Retail Ltd
To redeem your points, simply log into your account, view your available balance, and follow the on-screen instructions to generate a discount code. Enter the code at checkout to instantly apply your reward.
AC Infinity MULTIFAN S2 Quiet USB Cooling Blower – 120mm
Keep electronics and equipment running cooler with the AC Infinity MULTIFAN S2 Quiet USB Cooling Blower. Unlike a conventional axial fan that pushes air directly forwards, the MULTIFAN S2 features a low-profile blower design that draws air from underneath and exhausts it through the rear, making it ideal for equipment installed inside cabinets, racks and other areas with restricted clearance.
Delivering up to 35 CFM of airflow while producing just 17 dBA of noise, the MULTIFAN S2 provides effective targeted cooling without creating excessive background noise. An integrated multi-speed controller allows airflow to be adjusted to suit your equipment and environment.
USB-powered operation, a long 6ft power cable, anti-vibration silicone mounts and premium dual-ball bearings make the MULTIFAN S2 a versatile cooling solution for grow room equipment, controllers, AV systems, routers, amplifiers, games consoles and other heat-producing electronics.
Key Features
- 120mm low-profile USB cooling blower
- Draws warm air from underneath and exhausts it through the rear
- Ideal for equipment with limited overhead clearance
- Delivers up to 35 CFM airflow
- Ultra-quiet 17 dBA operation
- Three adjustable speed settings
- In-line speed controller with power switch
- USB powered for simple installation
- 6ft / 1.8m power cable
- Premium dual-ball bearing system
- Rated lifespan of up to 67,000 hours
- Can operate horizontally or vertically
- Silicone anti-vibration mounts help reduce operational noise
- Additional USB connection for daisy chaining compatible MULTIFAN units
- Up to four compatible fans can share one suitable USB power source
- Low 1.05W power consumption
Low-Profile Blower Design
The MULTIFAN S2 has been specifically designed for applications where a conventional cooling fan may not be suitable. Instead of directing airflow straight upwards or forwards, the blower pulls warm air from underneath the unit and directs it out through the rear.
This makes it particularly effective when positioned on top of electronic equipment or inside cabinets where there is limited vertical clearance. Warm air can be drawn away from the equipment and redirected towards the rear of the installation, helping prevent heat from becoming trapped around sensitive components.
35 CFM Airflow
Despite its compact, low-profile construction, the MULTIFAN S2 delivers up to 35 CFM of airflow.
This provides enough air movement to help remove heat from a wide range of electronic equipment while maintaining a compact footprint of approximately 120 × 120mm.
Ultra-Quiet 17 dBA Operation
Cooling equipment doesn't need to be noisy. The MULTIFAN S2 produces just 17 dBA during operation, making it particularly suitable for environments where continuous fan noise would be distracting.
Four silicone mounts positioned beneath the blower also help absorb vibration and reduce noise transferred between the fan and the surface it is sitting on.
Three Adjustable Speed Settings
An in-line multi-speed controller allows the MULTIFAN S2 to be adjusted between three fan speed settings, giving you control over the balance between airflow and operating noise.
Use a lower setting when only gentle cooling is required or increase the fan speed when additional airflow is needed. An integrated off switch also allows the blower to be conveniently switched off without disconnecting the USB cable.
USB Powered for Simple Installation
The MULTIFAN S2 features a standard 5V USB power connection, allowing it to operate from suitable USB power sources.
This is particularly convenient when cooling equipment that already provides USB connections, such as computers, AV equipment, games consoles and other electronics.
The generous 6ft / 1.8m power cable provides additional flexibility when positioning the blower around your equipment.
Connect Multiple MULTIFAN Units
For installations requiring additional airflow, compatible MULTIFAN S Series fans can be daisy chained together.
Each unit features an additional USB connection, allowing up to four compatible fans to share a suitable USB power source. This makes it easy to expand your cooling system when managing larger equipment cabinets or multiple heat-producing components.
Long-Life Dual-Ball Bearings
The MULTIFAN S2 uses premium dual-ball bearings designed for reliable long-term operation. With a rated lifespan of up to 67,000 hours, the blower is well suited to applications requiring regular or continuous cooling.
The bearing system also allows the unit to operate in either a horizontal or vertical position, providing additional flexibility when designing your cooling setup.
Ideal for Grow Room Equipment & Electronics
Although exceptionally useful for general electronics cooling, the MULTIFAN S2 can also be used around indoor growing equipment where additional targeted airflow is required.
Its compact dimensions and low noise level make it particularly useful for cooling controllers, power equipment and other electronics where a full-size circulation fan would be unnecessary.
Popular Applications
- Grow room controllers and electronic equipment
- AV cabinets and entertainment systems
- Amplifiers and receivers
- Routers and modems
- Games consoles
- Computers and electronic components
- Equipment racks
- Media centres
- Electronic cabinets
- Equipment with restricted overhead clearance
Technical Specifications
| Product | AC Infinity MULTIFAN S2 Quiet USB Cooling Blower |
| Model | AI-MPB140A |
| Fan Size | 120mm |
| Dimensions | 12 × 12 × 2.5cm |
| Maximum Airflow | 35 CFM |
| Noise Level | 17 dBA |
| Maximum Speed | 1,200 RPM |
| Speed Settings | 3 |
| Static Pressure | 0.84 mm-H2O |
| Operating Voltage | 3–7V DC |
| Power Consumption | 1.05W |
| Current | 0.2A |
| Power Connection | USB |
| Cable Length | 6ft / 1.8m |
| Bearings | Dual Ball |
| Rated Lifespan | 67,000 Hours |
| Mounting Position | Horizontal or Vertical |
| Airflow Direction | Bottom Intake / Rear Exhaust |
Frequently Asked Questions
What is the difference between a cooling blower and a normal USB fan?
A conventional axial cooling fan generally moves air directly through the front and rear of the fan. The MULTIFAN S2 uses a low-profile blower design that draws air from underneath and exhausts it through the rear, making it particularly useful when cooling equipment with limited space above it.
How much airflow does the MULTIFAN S2 produce?
The MULTIFAN S2 delivers up to 35 CFM of airflow while maintaining exceptionally quiet operation.
How quiet is the MULTIFAN S2?
The blower has a rated noise level of just 17 dBA. Silicone anti-vibration mounts also help minimise vibration and transferred noise.
Can I adjust the fan speed?
Yes. The included in-line controller provides three adjustable fan speeds as well as an off position, allowing you to balance cooling performance and noise.
Can I connect multiple MULTIFAN units together?
Yes. Compatible MULTIFAN S Series units can be daisy chained, with up to four compatible fans sharing a suitable USB power source.
Can it run continuously?
The premium dual-ball bearing system is designed for long-term operation and has a rated lifespan of up to 67,000 hours, making the MULTIFAN S2 suitable for applications requiring extended cooling periods.
Compact Cooling for Tight Spaces
The AC Infinity MULTIFAN S2 Quiet USB Cooling Blower is an excellent solution for equipment that requires additional cooling but has limited space available for a conventional fan. Its low-profile bottom-intake and rear-exhaust design efficiently redirects warm air away from electronics, while 35 CFM airflow, ultra-quiet 17 dBA operation and adjustable speed control provide an excellent balance of cooling performance and noise.
With USB power, long-life dual-ball bearings, daisy-chain compatibility and flexible horizontal or vertical positioning, the MULTIFAN S2 provides a simple and reliable way to protect electronic equipment from excessive heat.
