The special RGB edition of the J23 comes with 3 built-in 120mm 12V RGB front fans that are dual-mode controllable either via the I/O port RGB button or the synchronization with enthusiasts’ favorite RGB capable motherboard brands, including Asus, Gigabyte, MSI, ASRock, & Biostar. The J23 also features a full-width tempered glass panel on the left side, an acrylic front panel to showcase your fans & lighting modes, as well as a handy power supply cover to keep your system looking neat & tidy. 3 Built-in 120mm 12V RGB Fans Versa J23 TG RGB is preinstalled with three 120mm 12V RGB fans that can be controlled using a simple interface built into the I/O panel that cycles through three different lighting modes & a range of different color options. Sync with Motherboard RGB Software Designed to synchronize with ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, ASRock RGB LED, & BIOSTAR Vivid LED DJ, the included 12V RGB front fans allow you to control the lighting modes through your motherboard software. Visit the support page for motherboard information or to download the software: Built-in RGB Switch Board Thanks to the built-in RGB switch board, Versa J23 TG RGB is able to deliver the ultimate RGB lighting customization through the I/O port RGB button or the synchronization with ASUS Aura Sync, GIGABYTE RGB Fusion & MSI Mystic Light Sync-enabled motherboards. Built-in PSU Cover With a built-in power supply cover, the J23 features plenty of ventilation to keep your power supply cool while also hiding away all those cables. Tempered Glass Window The Versa J23 comes equipped with a full sized 4mm thick tempered glass panel which is held on with thumbscrews in each corner. Our tempered glass panels are made to be durable & show less wear & tear than traditional acrylic panels – making this the best way to show off your system! Tool-Free Installation Forget fiddly drive bays & running out of space where you need it. The Versa J23 features totally tool-less drive bays that are interchangeable between above & below the power supply cover, as well as behind the motherboard tray for a total of seven expansion slots b> Superior Hardware Support Don’t compromise on hardware, the J23 can fit a tower CPU cooler with maximum height 160mm, & dual expansion slots for VGA up to 310mm in length, & a power supply with length of up to 170mm. Excellent Cooling Capability The Versa J23 comes with one 120mm fan preinstalled in the rear, as well as three 120mm 12V RGB fans in the front with space for two more 140mm fans at the top. The front & top panels also feature mesh cutouts to keep airflow as high as possible, & helping hardware stay cool. Modern, Sleek Styling The J23 is designed to draw all the focus onto your internal system. The acrylic front panel lets light pour out from your fans, while the ventilated top & tempered glass side panels put your hardware on display. Handy I/O Ports The top-front panel features two USB (Universal Serial Bus) 3.0 data ports as well as audio passthrough & RGB lighting control switch.