We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication.This Lenovo ThinkCentre M90q Mini PC (2021) is on sale for $455.99 on StackSocial right now, offering business-grade performance in a compact form factor small enough to hide behind a monitor. Inside its 7-inch frame sits a 10th Gen Intel Core i5 processor with six cores, 16GB of DDR4 RAM, and a 512GB NVMe SSD. That’s enough muscle for multitasking, large spreadsheets, or running several browser tabs at once without slowdown. It’s not built for heavy graphics work or gaming, but for office productivity or remote setups, it’s more than capable of keeping up. And with Windows 11 Pro preinstalled, it’s ready for modern workflows right out of the box.Where this PC really stands out is in its flexibility. You can mount it behind a screen, tuck it under a desk, or leave it visible as a minimal addition to your setup. The design is simple—matte black, compact, and focused entirely on function. It supports up to three monitors via HDMI and DisplayPort, making it a good fit for anyone managing multiple windows or dashboards. The front-facing USB-C port is convenient for fast charging and quick file transfers, while Wi-Fi 6 and Bluetooth 5.1 ensure a seamless connection without the need for a tangle of cables. It also includes thoughtful business features, such as Smart Power On and expansion slots for upgrades, which are useful if you want to add storage later.The M90q Mini also features TPM 2.0 encryption, BIOS-level protection, password controls, and a chassis intrusion switch that alerts you if someone attempts to open the case. It’s also built to military-grade durability standards (MIL-STD-810H), ensuring it can withstand years of use without issue. There’s no included warranty, which might give some buyers pause, but for those looking for a compact, strong performer for work or as a small home office machine, this sale is a great option. Our Best Editor-Vetted Tech Deals Right Now Apple AirPods 4 Wireless Earbuds — $84.99 (List Price $129.00) Apple iPad 11" 128GB A16 WiFi Tablet (Blue, 2025) — $324.99 (List Price $349.00) Shark AV2501AE AI XL Hepa- Safe Self-Emptying Base Robot Vacuum — $297.99 (List Price $649.99) Apple Watch Series 10 — $309.99 (List Price $429.00) Google Pixel 9 128GB Unlocked 6.9" OLED Smartphone (Obsidian) — $544.98 (List Price $799.00) Amazon Fire HD 10 (2023) — $69.99 (List Price $139.99) Sony WH-1000XM5 — $328.00 (List Price $399.99) Blink Outdoor 4 1080p Wireless Security Camera (5-Pack) — $159.99 (List Price $399.99) Ring Floodlight Cam Wired Plus 1080p Security Camera (White) — $99.99 (List Price $179.99) Deals are selected by our commerce team