MSI PRO DP21 13M

The MSI PRO DP21 13M takes a different path from the Beelink and GMKtec boxes that dominate Starry Hope’s mini PC coverage. Instead of a soldered mobile chip in a palm-sized shell, this 2.3-liter desktop runs a socketed 13th Gen Intel Core i3-13100, pairs it with two DDR4 SO-DIMM slots, an M.2 slot, and two 2.5-inch drive bays, and adds the kind of legacy hardware that businesses still depend on: a serial COM port, a VESA mount, and TPM 2.0. It is built to sit behind a monitor in an office, a reception desk, or a point-of-sale counter and keep working for years, with parts a technician can replace.

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MSI PRO DP21 13M Comparison Chart

	MSI PRO DP21 13M	MSI PRO DP21 13M	MSI PRO DP21 13M
Price	List Price: $659.00 Amazon Prices: Loading prices...	List Price: $699.00 Amazon Prices: Check Price on Amazon	List Price: $809.00 Amazon Prices: Check Price on Amazon
Version	8GB/500GB/Intel Core i3-13100	8GB/500GB/Intel Core i5-13400	8GB/500GB/Intel Core i7-13700
Performance Rating	3.5	4.5	5.6
Operating System	Windows 11 Home	Windows 11 Home	Windows 11 Home
Processor	Quad-core 3.40 Ghz (max 4.50 Ghz) Intel Core i3-13100	Deca-core 2.50 Ghz (max 4.60 Ghz) Intel Core i5-13400	Sixteen-core 2.10 Ghz (max 5.20 Ghz) Intel Core i7-13700
GPU	Integrated Intel UHD Graphics 730	Integrated Intel UHD Graphics 730	Integrated Intel UHD Graphics 770
RAM	8 GB DDR4 SO-DIMM, 2-channel (2x SO-DIMM slots, up to 64GB)	8 GB DDR4 SO-DIMM, 2-channel (2x SO-DIMM slots, up to 64GB)	8 GB DDR4 SO-DIMM, 2-channel (2x SO-DIMM slots, up to 64GB)
Internal Storage	500 GB NVMe SSD	500 GB NVMe SSD	500 GB NVMe SSD
Dimensions width x length x thickness	8.03 x 8.19 x 2.16 inches (203.96 x 208.03 x 54.86 mm)	8.03 x 8.19 x 2.16 inches (203.96 x 208.03 x 54.86 mm)	8.03 x 8.19 x 2.16 inches (203.96 x 208.03 x 54.86 mm)
Weight	2.8 lbs (1.27 kg)	2.8 lbs (1.27 kg)	2.8 lbs (1.27 kg)
WiFi	Wi-Fi 6E (802.11ax)	Wi-Fi 6E (802.11ax)	Wi-Fi 6E (802.11ax)
Bluetooth	Bluetooth 5.3	Bluetooth 5.3	Bluetooth 5.3
Ethernet	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps	1 Ethernet port at 1 Gbps
HDMI	1 Full-Size HDMI Port	1 Full-Size HDMI Port	1 Full-Size HDMI Port
DisplayPort	1 DisplayPort (DP 1.4; dual 4K at 60Hz with HDMI)	1 DisplayPort (DP 1.4; dual 4K at 60Hz with HDMI)	1 DisplayPort (DP 1.4; dual 4K at 60Hz with HDMI)
VGA	No VGA Ports	No VGA Ports	No VGA Ports
USB Ports	4 USB 2.0, 3 USB 3, 1 USB-C 4x USB-A 2.0 (front); USB-C + 3x USB-A (rear)	4 USB 2.0, 3 USB 3, 1 USB-C 4x USB-A 2.0 (front); USB-C + 3x USB-A (rear)	4 USB 2.0, 3 USB 3, 1 USB-C 4x USB-A 2.0 (front); USB-C + 3x USB-A (rear)
Thunderbolt Ports	No	No	No
OCuLink	No	No	No
Internal SATA Ports	2 SATA ports, includes 2.5" drive bay (2x 2.5-inch SSD/HDD bays)	2 SATA ports, includes 2.5" drive bay (2x 2.5-inch SSD/HDD bays)	2 SATA ports, includes 2.5" drive bay (2x 2.5-inch SSD/HDD bays)
Card Reader	No Card Reader	No Card Reader	No Card Reader
Headphone Jack	separate	separate	separate
Fanless	No	No	No
VESA Mount	Yes	Yes	Yes
In the Box	Power cord, VESA mount screws, quick guide, warranty card	Power cord, VESA mount screws, quick guide, warranty card	Power cord, VESA mount screws, quick guide, warranty card
Expandability	Up to 64GB DDR4 (2x SO-DIMM), M.2 slot, 2x 2.5-inch bays, serial COM port	Up to 64GB DDR4 (2x SO-DIMM), M.2 slot, 2x 2.5-inch bays, serial COM port	Up to 64GB DDR4 (2x SO-DIMM), M.2 slot, 2x 2.5-inch bays, serial COM port

Socketed desktop parts in a 2.3-liter case

The chassis measures roughly 8.03 by 8.19 by 2.16 inches and weighs about 2.8 pounds, a flat slab that lies horizontally under a display or stands upright with the bundled foot. The front face keeps things simple with a power button, separate microphone and headphone jacks, and a row of four USB 2.0 Type-A ports for keyboards, a mouse, and the odd flash drive. The faster connectivity lives on the back: a USB 3.2 Gen 2 Type-C port, a USB 3.2 Gen 2 Type-A port, and a pair of USB 3.2 Gen 1 Type-A ports, alongside an HDMI output and a DisplayPort 1.4 connector that together drive two 4K displays at 60Hz. Networking is handled by a single gigabit Ethernet jack plus Wi-Fi 6E and Bluetooth 5.3, though the exact wireless module varies by configuration.

The Intel Core i3-13100 is a desktop Raptor Lake quad-core with eight threads, a 3.4GHz base, and a 4.5GHz boost, and it posts a PassMark score around 14,100. That puts the machine firmly in everyday-productivity territory: spreadsheets with a dozen browser tabs, video calls, 1080p streaming, and light photo work all run comfortably, while the integrated UHD 730 graphics keep it out of serious gaming or GPU-accelerated rendering. Because the chip sits in a socket rather than being soldered down, MSI ships the same chassis with Core i5 and Core i7 options, and an owner could in principle drop in a higher tier later.

Two 2.5-inch bays sit alongside the M.2 slot. The Stay At Home Business review of the i3-13100 barebone notes that the case “can accommodate both M.2 and 2 x 2.5-inch SSD/HDD storage,” so you can pair a fast NVMe boot drive with two larger 2.5-inch drives for bulk or redundant storage. Memory runs through two DDR4 SO-DIMM slots up to 64GB total. The retail 13M-498US configuration arrives with 8GB of RAM and a 500GB NVMe SSD running Windows 11 Home, while a barebone SKU sells the same chassis with no memory, storage, or operating system for buyers who want to supply their own.

A serial COM port handles legacy registers, scanners, and industrial equipment that still speak RS-232. TPM 2.0 gives IT departments the hardware security hooks they expect, and the VESA mount lets the unit disappear behind a monitor or under a desk. If you are weighing it against a more conventional small-form-factor business box, the ASUS NUC 13 Pro covers similar ground with a more modern port layout, while a budget alternative like the Beelink EQi12 trades the COM port and dual drive bays for a smaller footprint.

Reviewer Insights

Most in-depth video coverage of the DP21 line examines the newer 14MQ sibling instead of this 13th Gen model. The chassis, cooling, and design carry across both generations.

Elevated Systems, reviewing the newer 14MQ sibling, frames the DP21 line as a deliberate outlier among disposable mini PCs, noting that “unlike most NUC-style mini PCs the DP21 is built with desktop components, that means everything is socketed and upgradeable from the RAM to the storage, Wi-Fi, and even the CPU.” The reviewer praises its quiet operation and efficiency, the inclusion of a serial COM port, and MSI’s reputation and centralized support. On that 14MQ unit the pre-installed Norton 360 bloatware is “disappointing” and hard to remove, networking is limited to a single gigabit port rather than 2.5GbE, there is no USB4 or Thunderbolt, and the integrated graphics are weak compared with mobile Ryzen or Intel Ultra chips. For this reviewer the DP21 “isn’t trying to be the most powerful or feature-packed system; it’s built for reliability, efficiency, and ease of use.”

PCWorld found in a hands-on teardown that the larger DP21 case oddly omits a heatsink over the NVMe slot despite having room for one. The same teardown, which runs across MSI’s mini PC range, reinforces the serviceability story, confirming that the DP21 “has a socket desktop part in here” that owners could theoretically upgrade, with user-accessible RAM and storage.

Stay At Home Business calls the i3-13100 barebone “a compact and powerful mini-desktop” well suited to “commercial office needs” or duty as an entertainment PC, and highlights the 4K 60Hz dual-monitor output and the easy-to-upgrade case. Mini PC Reviewer, looking at an earlier 12th Gen DP21, reaches a similar verdict: a “well-rounded mini PC” with quiet operation, easy upgrades, and Wi-Fi 6, held back by limited base storage and the absence of discrete graphics.

Fleets, kiosks, and multi-drive home servers

The DP21 13M makes the most sense for buyers who value longevity and serviceability over raw speed. Small businesses standardizing a fleet, offices that need a tidy VESA-mounted desktop, point-of-sale and kiosk deployments that still rely on serial peripherals, and home users who want a quiet, upgradeable Windows box all fit the profile. The deep storage expansion suits anyone running a small file server, security-camera recorder, or media library that benefits from multiple drives.

It is a weaker fit for gamers, video editors, or anyone leaning on GPU acceleration, where the UHD 730 graphics fall short and a machine with Ryzen graphics or a discrete GPU would serve better. The single gigabit Ethernet port and DDR4 memory also make it a poor match for users who want 2.5GbE networking or DDR5 bandwidth.

A repairable small desktop built for long service

The Core i3-13100 covers office work, web-based applications, and everyday multitasking, and the upgrade path leaves room to add memory, storage, or even a faster CPU down the line. Socketed components, three drive positions, a serial COM port, TPM 2.0, and MSI’s centralized business support are what the money buys.

The integrated graphics are basic, networking tops out at a single gigabit port, there is no USB4 or Thunderbolt, the DDR4 memory is a generation behind, and MSI’s bundled software needs a cleanup pass out of the box. None of those are dealbreakers for the office and POS roles this machine targets, though shoppers chasing performance or faster connectivity should look elsewhere. If you are still weighing it against other options, the mini PC comparison chart lets you filter the full catalog by specs and price side by side.

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