1. Okwu mmalite
This manual provides detailed instructions for the installation, operation, and maintenance of your darkFlash DS900 Air ATX Mid-Tower PC Gaming Case. Please read this manual thoroughly before beginning assembly to ensure proper setup and safe usage. The DS900 Air is designed to offer a clear view of your components with its 270° full-view tempered glass and provides excellent cooling capabilities for high-performance systems.

Figure 1.1: darkFlash DS900 Air ATX Mid-Tower PC Gaming Case with internal components and RGB lighting.
2. Ozi nchekwa
Na-edebe nchekwa nchekwa ndị a mgbe niile n'oge ntinye na arụ ọrụ:
- Gbanyụọ ọkụ eletrik ahụ na mpụta mgbidi tupu ịwụnye ma ọ bụ wepụ ihe ọ bụla dị na ya.
- Yiri eriri nkwojiaka mgbochi static iji gbochie mwepu electrostatic (ESD) mebie ihe ndị nwere mmetụta.
- Handle tempered glass panels with care. Avoid impacts or dropping them, as they can shatter.
- Debe obere akụkụ na skru ka ụmụaka ghara ịhụ ya.
- Ensure proper ventilation around the case to prevent overheating.
- Do not attempt to modify the case structure, as this may void the warranty and pose safety risks.
3. Nkọwapụta
| Njirimara | Nkọwapụta |
|---|---|
| Aha Nlereanya | DS900 Air |
| Ụdị ikpe | Ụlọ elu ATX |
| Nkwado motherboard | ATX, Micro-ATX, Obere-ITX |
| Nchapụta Ogologo Ogologo GPU | Ihe ruru 425 mm |
| Nchapụta elu CPU cooler | Ihe ruru 170 mm |
| Udị PSU | ATX (Bottom-mounted) |
| Ụgbọ okporo ígwè | 2x 3.5" HDD or 2x 2.5" SSD, 2x 2.5" SSD |
| Oghere Mgbasawanye | 7 PCIe oghere |
| ọdụ ụgbọ mmiri I/O | 1x USB-C, 1x USB 3.0, Audio (HD Audio) |
| Nkwado ndị fan | Bottom: 3x 120mm; Top: 3x 120mm or 2x 140mm; Rear: 1x 120mm; Right Side: 2x 120mm |
| Nkwado Radiator | Top: Up to 360mm; Side: Up to 240mm |
| Akụrụngwa | Steel, iko dị ọkụ |

Figure 3.1: Radiator and fan support diagram for the DS900 Air case, illustrating maximum component dimensions.
4. Ntọala na nwụnye
Follow these steps to assemble your PC components within the darkFlash DS900 Air case.
4.1. Ịkwadebe Okwu ahụ
- Wepu akụkụ akụkụ: The DS900 Air features a tool-free clamshell side panel. Gently pull the top edge of the tempered glass side panel to unlatch it, then lift it off. Repeat for the other side panel if necessary.
- Igbe ngwa ngwa: Locate the accessory box inside the case, which contains screws, cable ties, and other mounting hardware.
4.2. Nwụnye motherboard
- Wụnye ọta I/O n'ime oghere azụ nke ikpe ahụ.
- Align your ATX, Micro-ATX, or Mini-ITX motherboard with the standoffs inside the case. Ensure the I/O ports align with the I/O shield.
- Chekwaa motherboard site na iji kposara enyere.
4.3. Nrụnye Ike Ike (PSU).
- The DS900 Air has a dedicated bottom PSU chamber. Slide your ATX power supply into the chamber from the rear of the case.
- Chekwaa PSU site na skru site n'azụ ikpe ahụ.
- Route necessary power cables through the cutouts into the main compartment.

Figure 4.1: Internal layout showing the multifunction drive bracket and the bottom-mounted PSU chamber.
4.4. Nwụnye ngwaọrụ nchekwa
The case supports up to two 3.5" HDDs or 2.5" SSDs in the hard drive bracket, and two additional 2.5" SSDs on the multifunction bracket.
- 3.5" HDD / 2.5" SSD: Install drives into the removable hard drive bracket located in the PSU chamber. Secure with screws.
- 2.5" SSD: Mount 2.5" SSDs onto the multifunction bracket located on the motherboard tray. Secure with screws.
4.5. Nwụnye kaadị eserese (GPU).
- Wepu ihe mkpuchi oghere PCIe dị mkpa n'azụ ikpe ahụ.
- Tinye kaadị eserese gị n'ime oghere PCIe kwesịrị ekwesị na motherboard.
- Secure the graphics card with screws. The case supports GPUs up to 425mm in length.
4.6. Cooling System Installation (Fans/Radiators)
The DS900 Air offers extensive cooling options:
- N'elu: Supports up to 3x 120mm fans or 2x 140mm fans, or a 360mm radiator.
- N'okpuru: Supports up to 3x 120mm fans.
- N'azu: Supports 1x 120mm fan.
- Akụkụ aka nri: Supports 2x 120mm fans or a 240mm radiator.
Install fans and radiators using the appropriate screws and mounting points. Ensure correct airflow direction for optimal cooling.

Figure 4.2: Fan support locations and quantities within the DS900 Air chassis.

Figure 4.3: Airflow diagram demonstrating optimal cooling paths through the case.
4.7. Connecting Front I/O Cables
Connect the front panel cables (USB-C, USB 3.0, HD Audio, Power, Reset, LED) to their corresponding headers on your motherboard. Refer to your motherboard manual for exact header locations.

Figure 4.4: Top-right I/O panel featuring USB-C and USB 3.0 ports.
4.8. Njikwa USB
Jiri ihe e ji ewepụ eriri na ebe e ji ejikọta eriri ndị dị n'azụ tray motherboard jikwaa eriri ndị ahụ. Nke a na-eme ka ikuku na ịma mma dịkwuo mma.
5. Na-arụ ọrụ PC gị
Once all components are installed and cables are connected, replace the side panels. Connect your monitor, keyboard, mouse, and power cable. Press the power button on the case to start your system. Ensure all fans are spinning and components are receiving power.
6. Nlekọta
Ndozi mgbe niile na-enyere aka hụ na arụmọrụ kacha mma yana ogologo ndụ nke akụrụngwa PC gị.
- Nhicha uzuzu: Periodically clean dust filters and internal components using compressed air. The DS900 Air features mesh panels that help filter dust.
- Ofufe ikuku: Ensure no obstructions block the intake or exhaust vents of the case.
- Njikwa USB: Re-evaluate cable routing periodically to ensure no cables are interfering with fan blades or airflow.

Figure 6.1: Rear fan steel mesh protection, designed to improve heat dissipation.
7. Nchọpụta nsogbu
Ọ bụrụ na ị na-enwe nsogbu na PC gị, tụlee usoro ndị a na-emekarị iji dozie nsogbu ndị a:
- Enweghị ike: Lelee njikọ ike niile, gụnyere PSU na mgbidi, PSU na motherboard, na n'ihu panel ike mgba ọkụ na motherboard.
- Enweghị Ngosipụta: Ensure your monitor is connected to the graphics card (not the motherboard I/O unless using integrated graphics). Reseat the graphics card and RAM.
- ekpo oke ọkụ: Verify all fans are spinning correctly and are oriented for proper airflow. Check CPU cooler installation.
- Achọpụtaghị akụrụngwa: Reseat the component (e.g., RAM, GPU, storage drive) and check its power and data connections.
8. Akwụkwọ ikike na nkwado
darkFlash products are manufactured to high-quality standards. For warranty information or technical support, please refer to the official darkFlash websaịtị ma ọ bụ kpọtụrụ onye na-ere ahịa gị. Debe ihe akaebe nke ịzụrụ ihe maka akwụkwọ ikike.