---
product_id: 346561994
title: "K3 4 Bay Mini ITX NAS Case, Hot Swap 3.5\"/2.5\" SATA Hard Drive Tray, Flex Power Supply Enclosure with 12cm Cooling Fan, 2 USB2.0 for DIY Private Cloud TrueNAS OpenMediaVault"
brand: "audheid"
price: "฿48963"
currency: THB
in_stock: true
reviews_count: 10
category: "Audheid"
url: https://www.desertcart.co.th/products/346561994-k3-4-bay-mini-itx-nas-case-hot-swap-3
store_origin: TH
region: Thailand
---

# 4 Hot-Swap Drive Bays Mini-ITX & Flex PSU Compatible 12cm Silent Cooling Fan K3 4 Bay Mini ITX NAS Case, Hot Swap 3.5"/2.5" SATA Hard Drive Tray, Flex Power Supply Enclosure with 12cm Cooling Fan, 2 USB2.0 for DIY Private Cloud TrueNAS OpenMediaVault

**Brand:** audheid
**Price:** ฿48963
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your private cloud game with silent power and sleek storage!

## Quick Answers

- **What is this?** K3 4 Bay Mini ITX NAS Case, Hot Swap 3.5"/2.5" SATA Hard Drive Tray, Flex Power Supply Enclosure with 12cm Cooling Fan, 2 USB2.0 for DIY Private Cloud TrueNAS OpenMediaVault by audheid
- **How much does it cost?** ฿48963 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/346561994-k3-4-bay-mini-itx-nas-case-hot-swap-3)

## Best For

- audheid enthusiasts

## Why This Product

- Trusted audheid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Whisper-Quiet Cooling:** 12cm rear fan with optimized airflow keeps your drives cool 24/7, ensuring reliability and longevity under heavy workloads.
- • **User-Friendly Front I/O:** Quick-access power button plus dual USB 2.0 ports streamline daily data transfers—no more awkward cable reaching behind your rig.
- • **Compact Powerhouse Design:** Slim 26.5×19×18 cm footprint fits Mini-ITX boards and Flex PSUs, saving precious desk space without sacrificing performance.
- • **All-in-One DIY NAS Solution:** Complete mounting kit and smart cable management make setup a breeze, whether you’re a home cloud enthusiast or media server pro.
- • **Effortless Storage Expansion:** Tool-free hot-swap trays let you upgrade or swap drives in seconds—perfect for dynamic private clouds or RAID setups.

## Overview

The AUDHEID K3 Mini ITX NAS Case is a compact, durable NAS enclosure featuring 4 hot-swappable 2.5"/3.5" SATA drive bays, a silent 12cm cooling fan, and compatibility with Mini-ITX motherboards and Flex power supplies. Designed for seamless DIY private cloud or media server builds, it offers tool-free drive access, front USB 2.0 ports, and robust steel construction to protect your data while saving desktop space.

## Description

Buy AUDHEID K3 4 Bay Mini ITX NAS Case, Hot Swap 3.5"/2.5" SATA Hard Drive Tray, Flex Power Supply Enclosure with 12cm Cooling Fan, 2 USB2.0 for DIY Private Cloud TrueNAS OpenMediaVault: Computer Cases - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great Compact Case - Great Case. I struggled a good bit trying to get everything into position and screwed in, but that's the price of a tight fit. Make sure you have the right components beforehand! I ended up having to swap my power supply to a smaller unit to get everything in. Works perfect for a small media server. My only complaint is the dust accumulation. I've got 2 open disk slots that suck in a good bit of dust. That's to be expected of any PC I guess.
Review: Annoying motherboard mounting design, sharp edges - Overall I'd consider this case adequate. Once everything is installed it is fine, but getting stuff installed is a pita. The way the motherboard mounts in this case is pretty annoying. I really don't see why they designed it to mount backwards the way they did instead of just moving the mounting posts back and letting it mount like normal. But, because of the way they designed it you have to connect all your wiring on the motherboard before mounting it, and it is very difficult to get the motherboard into place with the posts hitting things and very little room to maneuver. On my particular motherboard that I was using (an ASRock B660M-ITX/AC) the CPU 8 pin power connector interferes with the bottom left post and makes it very difficult to get mounted. Top that off with this being a motherboard with built in wifi and the wifi antenna connectors make it even more difficult. Once you finally get everything installed, pray you don't have to do any maintenance cause you'll have to take the motherboard out again to get to anything. Also of note, the stock CPU cooler doesn't really fit. It will hit the HDD cage. You need something really low profile like the noctua low profile cooler. Beyond the fitment issues, the fan that comes with the case is complete garbage. It is not even a 3 pin fan, wired with just 2 wires and conected to the SATA backplane for power. Meaning it runs at 100% all the time, and it's a noise fan. I swapped it for a Noctua that I connected to the motherboard. If you get a Flex PSU with a toggle switch you will also have to cut a notch out on the case because it does not have an opening that allows for that. Otherwise, my final complaint about the case is just that it has sharp edges in a lot of places. That combined with the tiny amount of space to work in means cutting and scraping up your fingers / hands while working in this case is inevitable. On the good side though, it is a nice compact case for a 4 bay nas build. The hdd trays aren't terrible. The outside of the case looks good and doesn't feel like low quality.

## Features

- 4 Hot-Swap Hard Drive Bays: Supports four 2.5-inch or 3.5-inch mechanical hard drives; drive trays can be inserted and removed without tools, allowing you to set up a private cloud or RAID array to meet long-term storage needs for family photos and 4K media; compatible with mainstream NAS systems such as TrueNAS, OMV, and software routers.
- Mini-ITX & Full Flex PSU Compatibility: Compatible with 6.7×6.7-inch Mini-ITX motherboards; when paired with a Flex compact power supply, the unit measures just 26.5×19×18 cm, taking up minimal desktop space; constructed from 1mm-thick SGCC steel plate to prevent deformation and resist vibrations, effectively protecting the hard drives.
- 12cm Rear Silent Cooling Fan: The large rear cooling channel effectively dissipates heat from the hard drives and motherboard, supporting 24/7 operation without overheating; dense ventilation holes on the side panel assist with airflow, reducing hard drive wear and tear.
- Practical Front I/O Design for Daily Use: A front power button and two USB 2.0 ports allow for quick connection of USB flash drives to copy data without having to reach around to the back of the case; the hard drive indicator light provides real-time monitoring of the hard drive’s operating status.
- All-in-One DIY NAS Enclosure for Multi Scenarios: Suitable for home private clouds, studio media servers, and software router hosts; comes with a complete set of internal mounting brackets and ample cable management space, making installation easy even for beginners; the unit weighs 3.5 kg, is stable and wobble-free, and includes a full set of mounting screws and accessories.
- What You Get: A mini pc case with accessories including 1x 12cm mute back fan, 1x back panel, 4 x hard disk stand, SATA data cable and various screws.(Motherboard CPU and other accessories are not included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B096FD8WVS |
| Antenna Location | Business |
| Best Sellers Rank | #1,139 in Computer Cases |
| Brand | AUDHEID |
| Case Type | Mini-Tower |
| Color | Black |
| Compatible Devices | Servers |
| Cooling Method | Air |
| Customer Reviews | 3.8 out of 5 stars 64 Reviews |
| Enclosure Material | Alloy Steel |
| Fan Size | 12 centimeters |
| Hard Disk Form Factor | 2.5 inches |
| Internal Bays Quantity | 4 |
| Item Dimensions D x W x H | 26.5"D x 19"W x 18"H |
| Item Weight | 7 pounds |
| Manufacturer | AUDHEID |
| Material | Alloy Steel |
| Model Name | K3 Chassis |
| Motherboard Compatability | Mini ITX |
| Number of Fans | 1 |
| Number of Items | 1 |
| Other Special Features of the Product | 12cm Silent Fan |
| Power Supply Mounting Type | Bottom Mount |
| Recommended Uses For Product | Business |
| Supported Motherboard | Mini ITX |
| Total USB 2.0 Ports | 2 |
| Total Usb Ports | 4 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** AUDHEID
- **Case Type:** Mini-Tower
- **Color:** Black
- **Cooling Method:** Air
- **Fan Size:** 12 centimeters
- **Material:** Alloy Steel
- **Model Name:** K3 Chassis
- **Motherboard Compatability:** Mini ITX
- **Power Supply Mounting Type:** Bottom Mount
- **Recommended Uses For Product:** Business

## Images

![K3 4 Bay Mini ITX NAS Case, Hot Swap 3.5"/2.5" SATA Hard Drive Tray, Flex Power Supply Enclosure with 12cm Cooling Fan, 2 USB2.0 for DIY Private Cloud TrueNAS OpenMediaVault - Image 1](https://m.media-amazon.com/images/I/71a7iTZKAdL.jpg)

## Questions & Answers

**Q: ATX power supply compatiable?**
A: Nope.  It accepts a flex atx psu.

**Q: Can i get a manual? im looking for the pin out for power/led/reset button?**
A: There is no manual, it should just be standard pins, and the layout of the pins is specific to each motherboard, so you need to to refer to your motherboard pin layout not the case

**Q: Has anyone had issues with the power button? It lights up fine, but pressing it doesn’t do anything.**
A: Mines worked great. I've had it for a year now

**Q: max cpu cooler height?**
A: I barely fit a low profile stock intel cooler

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Compact Case
*by N***D on February 25, 2025*

Great Case. I struggled a good bit trying to get everything into position and screwed in, but that's the price of a tight fit. Make sure you have the right components beforehand! I ended up having to swap my power supply to a smaller unit to get everything in. Works perfect for a small media server. My only complaint is the dust accumulation. I've got 2 open disk slots that suck in a good bit of dust. That's to be expected of any PC I guess.

### ⭐⭐⭐ Annoying motherboard mounting design, sharp edges
*by S***. on March 28, 2022*

Overall I'd consider this case adequate. Once everything is installed it is fine, but getting stuff installed is a pita. The way the motherboard mounts in this case is pretty annoying. I really don't see why they designed it to mount backwards the way they did instead of just moving the mounting posts back and letting it mount like normal. But, because of the way they designed it you have to connect all your wiring on the motherboard before mounting it, and it is very difficult to get the motherboard into place with the posts hitting things and very little room to maneuver. On my particular motherboard that I was using (an ASRock B660M-ITX/AC) the CPU 8 pin power connector interferes with the bottom left post and makes it very difficult to get mounted. Top that off with this being a motherboard with built in wifi and the wifi antenna connectors make it even more difficult. Once you finally get everything installed, pray you don't have to do any maintenance cause you'll have to take the motherboard out again to get to anything. Also of note, the stock CPU cooler doesn't really fit. It will hit the HDD cage. You need something really low profile like the noctua low profile cooler. Beyond the fitment issues, the fan that comes with the case is complete garbage. It is not even a 3 pin fan, wired with just 2 wires and conected to the SATA backplane for power. Meaning it runs at 100% all the time, and it's a noise fan. I swapped it for a Noctua that I connected to the motherboard. If you get a Flex PSU with a toggle switch you will also have to cut a notch out on the case because it does not have an opening that allows for that. Otherwise, my final complaint about the case is just that it has sharp edges in a lot of places. That combined with the tiny amount of space to work in means cutting and scraping up your fingers / hands while working in this case is inevitable. On the good side though, it is a nice compact case for a 4 bay nas build. The hdd trays aren't terrible. The outside of the case looks good and doesn't feel like low quality.

### ⭐⭐⭐⭐ Nice, compact case for drive hosting
*by J***R on December 20, 2022*

This is going to be a bit of a rant of what this case cannot do, and what it is not. But I think I'll be answering questions others may have. I bought this with a specific use case in mind, but also with a curiosity of expanding that use case. The images aren't clear regarding the amount of (or lack of) space for an expansion card in the one and only PCI(e) slot on these boards. Even without an expansion slot on the back, there's nearly no room at all between where a card would be and the top brace (where the motherboard mounting standoffs are attached) - Some very thin cards could possibly fit, however we're talking about maybe an surface mounted SD Card slot. I did find an NVMe adapter card where the NVMe stick is installed on the "back side" of the card - meaning the NVMe would be on the side toward the CPU - honestly a great idea. I have not purchased one, yet, but am contemplating doing so. Aside from that, the power supply would be in the way for even a standard half height video card size card - there's enough space for a 1.5-1.75" tall expansion card, and that's it. With that said - NO WHERE DOES THE MANUFACTURER STATE AT ALL that the case is compatible with the use of any PCI/PCIe cards, and there is no back slot for such a card either. I knew this going in, and was hoping there was enough space for an NVMe/PCIe adapter card. There is not, at least not for the standard run of the mill adapters. However, I did, as mentioned, find an adapter card with the NVMe slot on the "wrong" side of the card. This may work to add an NVMe drive to the board, however when/if I buy one, i will be adding a layer of plastic to the card to protect it from grounding on the support bracing of the case. Regarding the wrong-side adapter, I'm not positive the images just aren't reversed, but the text on it is correct. YMMV, but here's the adapter for those wanting it: https://www.amazon.com/Adapter-Express-Expansion-Support-Compatible/dp/B07JKR5C3Z Oh, one other thing - the motherboard I have, the 8pin PSU connector and CPU fan header are very close to the mounting hole (the one along the same side as the back panel, but furthest from the PCIe slot) - This made installing the motherboard very difficult with the IO shield installed. However, after bending part of the support bracing (same one as above) - I was able to make just enough clearance to install the mobo with the shield. This did move the mounting standoff out of place a bit, but I was able to re-aligh it by squeezing it upward with my thumb. As for the CPU cooling - there's only one Heatsink/fan I found that would fit - and still have headroom for air flow. https://www.amazon.com/dp/B07SQWT6BV - it does a good enough job with a Ryzen 3 3200G under it. Forget using water cooling, unless you want to drill and cut holes in the case. There's no room inside for the thickness of a radiator (the SATA cables are in the way, though maybe using 90 degree connectors might work - but even then, the 120mm radiator I have is still too wide to fit in the available space (it's 125mm x 140(ish)mm - a 120mm fan fits very snugly. With a motherboard with an NVMe slot, a reverse-sided NVMe PCIe adapter, and the 4 supplied HDD/SDD quick slot bays, there's enough space for up to 6 drives in this case. However, there is the potential for a 7th USB slim-line external drive to be "installed" above the drive bays, in front of the PSU. It's a tight fit, but it can be done. This bring me to another point - there is a little L bracket towards the front of the case where the PSU is installed. This is my first time with a Flex PSU, and assumed it was intended to be attached to the PSU. After a few minutes of fiddling with it - I realized I could just loosen the screw, swing the bracket out of the way, install the PSU and then swing the bracket back against the PSU, putting a bit of pressure on it as I tighten the screw. This held the PSU in place without any of the three exterior screws. This is probably not what it's actually for as it does have a hole for another screw. Perhaps it is intended to hold a 2.5" drive? Seems silly though as I've never seen a manufacturer have only 1 mounting point for a drive. As for the included fan - can't tell you if it works well. I replaced it with a Noctua PWM fan. The included fan is a 2-pin fan, which plugs into the SATA backplane, presumably a constant 100% operation. I'm building this as a VM server with file archiving, and as it will sit idle most of the time, I wanted a fan that wouldn't be running at 100% the entire time. There is no issues with removing the load from the backplane. It does seem like a fairly reasonably well built fan, but again, I have not had it powered on at all. There is a sheet of plastic with 2 strips of adhesive included with the case. After tinkering around a moment, the cutouts align with the 4 mounting standoffs, with the adhesive strips facing the case shell. This should be installed to the inside of the case shell, with the U shaped cutout towards the back and bottom. The protective plastic should be butted up against the flange with the screw hole, and aligned with the edge of the wide flanges at the bottom, which secure the shell to the bottom of the chasis. Basically, just align the plastic with the 4 mounting holes while the adhesive strips are facing outward. The front USB ports seem a little off when inserting a USB thumb drive. This might just be mine. It took a moment of jiggling, removing and reinserting the thumb drive to get it to register, haven't had issues with it since, however. Screw alignment is top notch on everything on this case. From the PSU to the shell, the fan, and motherboard standoffs. I've had inexpensive cases which had either oblong holes to account for lack of precision, or simply couldn't accept a screw because alignment was off that much. Not the case here. The quick release sleds for the drive bays are not self-inserting - meaning you have to press the drive in all the way, and then close the lever. The lever is great for releasing the drive, but does not pull it in. The drive bay cage has some minor issues in design. There is absolutely no drive insertion guidance, and mis-aligning a drive is very easily done. The drive should freely slide into place, and with no pressure until the SATA/power connector mating, which takes minimal pressure. If the drive takes any pressure to insert after the first inch or so, it's not properly in the slots. I've seen better designs, but I've also seen worse. I am, however, a bit spoiled with Dell's constantly improving drive bay sleds. That's one of the differences between a $4500 case and a $65 case. I did not test the sleds with 2.5" devices, however the 4x 3.5" HDDs I installed fit like a glove (no, not OJ's glove, just a well fitting properly sized glove) The screw holes all lined up perfectly as well. Don't try to game with it, don't expect to put any PCIe cards in it (other than very very low outline cards), and I would NOT run a Nuclear Reactor of a CPU in this thing, as all of the airflow comes over the drives. When looking for a CPU cooler, you'll pretty much be relegated to a cooler intended for a 1U rack server. Remember, the fan won't push air if it can't get any air - and even with this 1U cooler I have, airflow will still be choked a bit. Ultimately, for what it is, and is marketed as, this is a great little SFF case. Just try to find a motherboard that isn't crowed around the mounting hole in the (normally) top left corner. There's even a motherboard which I almost purchased for this project with the NVMe slot on the backside - it would had been perfect for this use, as the motherboard is mounted in from the bottom, giving easy access to the NVMe with removing only the shell. This is that motherboard, it also has more space around that troublesome mounting hole I described: https://www.amazon.com/gp/product/B07FVVNDFX/ Additionally, if it weren't for the cost, this case is really begging for 90 degree lateral SATA cables, but at $12+ each, that's $50 for all 4 bays. Going down and under the drives, or up and over - either would be sufficient to provide more space in front of the case fan. Here's some cables I was looking at for this: https://www.amazon.com/StarTech-com-18in-Angle-Serial-Cable/dp/B00AKS0YL2 - Even standard 90 degree cables would provide a bit more space, and a bit easier cable management. If at all possible, I highly suggest installing 2.5" drives - either HDD or SDD, as that will allow more air flow into the machine. Ok, rant over. I hope this was helpful to at least someone! Good luck!

## Frequently Bought Together

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- Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W Fully Modular Power Supply, Full Range Active PFC 90-264V, AC for POS AIO System Desktop Gaming Server Small Form Factor (Flex ITX) Computer PSU

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-10-07*