Rank #9 in Best PC Cases 2026: 10 Ranked, and Why the Fan Count Misleads
ANSAITE K9 Mid-Tower ATX Case, 9 ARGB Fans
Price and rating as shown on Amazon when we collected them. Both change.
The ANSAITE K9 is a mid-tower ATX case selling for £76.49, and it takes ninth place in this guide. It is the listing here that answers the fan question most directly: ANSAITE states that nine 120mm PWM ARGB fans are pre-installed — three forward-blade at the top, three reverse-blade at the bottom and three reverse fans on the side panel. It costs £1.50 more than the three-fan Corsair 3500X in this guide while claiming six more fans in the box.
That claim is where the entry gets worth reading closely. The reviews on the same Amazon page do not agree on the count: one buyer writes that they got the "9 (NINE) included fans offer", another says "Bought with 8 fans". On top of that, the spec table lists an "Internal Bays Quantity" of 9 — a field that normally describes drive bays, carrying the fan figure instead. Everything on this page comes from the Amazon listing and its customer reviews; we have not built in, measured or tested this case ourselves.
How those 66 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £76.49 |
|---|---|
| Rating | 4.5 out of 5 from 66 Amazon ratings |
| Fans as listed | 9 × 120mm PWM ARGB pre-installed (3 top, 3 bottom, 3 side) |
| Internal Bays Quantity (as listed) | 9 |
| Motherboard support | ATX, Micro ATX |
| Layout | Mid tower, bottom-mounted power supply, up to 420mm radiator |
| Front I/O | 1 × USB 3.2 Gen 2 Type-C, 1 × USB 3.0, 1 × HD audio |
| Size and weight | 49D × 28.5W × 46H cm; 6 kg |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Absolute lovely case. The fans make it great value.I got the 9 (NINE) included fans offer.Picture shows I purchased 2 more fans - they ARE available on Amazon as singles or a pack of 3 (amazing value also) - this completes many builds -I added the 2 rear exhausts fans on the picture.Easy to build in and the airflow is fantastic - temps are excellent.The case is lovely and compact and fits most spaces.Simply great value for money - brand names mean nothing.An easy 5* product. (even though glass gets fingerprints on it lol)Excuse the recarpeting house mess!”
Verified purchase“This is an absolutely brilliant case for the price. Bought with 8 fans and I will be adding an AIO. Lots of room to easily work in. Good cable routes and securing points. Like the minimalistic outer with one USB A + C socket on the front with a 3.5 jack enclosed in the foot. Very tidy. Good air flow with low noise.”
What it is up against
The rivals it was ranked against in Best PC Cases 2026: 10 Ranked, and Why the Fan Count Misleads.
Questions people ask
How many fans does the ANSAITE K9 come with?
The listing says nine 120mm PWM ARGB fans are pre-installed: three at the top, three at the bottom and three on the side panel. One review on the same page counts the nine-fan offer; another says it was bought with eight fans.
What is 'Internal Bays Quantity: 9' in the spec table?
It is a field that normally lists drive bays, and here its value is the same as the fan count. The ANSAITE listing does not give a separate drive-bay figure.
Which motherboards and radiators does the K9 take?
The listing gives ATX and Micro ATX support, a mid-tower layout with a bottom-mounted power supply, and radiator support up to 420mm.
What connections are on the front panel?
1 × USB 3.2 Gen 2 Type-C, 1 × USB 3.0, 1 × HD audio, plus power and restart buttons.
How much does the ANSAITE K9 cost and how is it rated?
It is listed at £76.49, with an average of 4.5 out of 5 from 66 ratings.
Is the K9 back-connect ready?
ANSAITE says it is, with cable management space behind the board and a front panel kept clear to help airflow.
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