The player supports popular disc-based formats such as CD, DVD, Blu-ray, 3D Blu-ray, and Ultra HD Blu-ray. While I would classify the UBK90 as one of the more basic Ultra HD Blu-ray players currently available, it still has a lot of functionality to discuss. The included remote is a bit small, but it's well laid-out and has a good selection of buttons for most of the functions you'd typically use. Additionally, you'll find a LAN port to connect to the internet (WiFi is built in too) and an optical S/PDIF port if you want to send audio to something like a soundbar or an integrated amplifier.
The back of the unit features two HDMI ports: one a full-bandwidth 18Gbps HDMI 2.0 port, the other an audio-only HDMI 1.4 port, meant to connect to legacy devices that lack HDMI 2.0 support. On the front of the player you'll find the disc tray, physical buttons offering basic control of the player, and a USB port for local media playback. It's the type of player that would look good under most televisions. The design aesthetic is minimalistic and doesn't draw too much attention to itself. The chassis is a mix of metal and plastic and is finished in matte black. The design of the UBK90 follows that of previous LG Ultra HD Blu-ray players. Available Dolby Vision encoded content has been growing at an exponential pace, so support for this high-performance HDR standard is paramount for a player in 2019, especially at the UBK90's $279 asking price (though prices for this model do seem to flucuate a good bit from week to week). Unlike earlier offerings in this category, though, the UBK90 adds support for Dolby Vision encoded content found on both Ultra HD Blu-ray discs and from streaming services such as Netflix. LG's UBK90is a basic, no-frills Ultra HD Blu-ray player.