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TESmart makes EDID-emulating KVM switches that keep your windows in place when you swap computers, from about $170 for a four-port HDMI kit to $799 for a Thunderbolt unit built around Apple Studio Displays. Buy direct to stay inside the 30-day return window, and register the product to extend the warranty.
How we made this estimate
We compiled this from 8 sources checked between March 2023 and October 2026, and we did not test a TESmart switch ourselves. The sources are two expert hardware tests (one of them a full teardown), retailer rating pages at Amazon and Newegg, Trustpilot reviews of the brand's German store, a long-running owner thread on the AnandTech forums, an independent review of the HKS202-E23, and TESmart's own pricing, shipping and refund pages. Every price and policy below comes from the merchant's published pages, read in October 2026.
What TESmart actually sells
TESmart is a Shenzhen-based electronics maker whose main line is KVM switches: boxes that let two or more computers share one set of monitors, a keyboard and a mouse. The company says its first KVM shipped in 2013, and it dates the engineering behind the brand to 2004.
The catalogue is wider than most people expect. Alongside KVM switches for 2, 4, 8 and 16 computers, TESmart sells HDMI matrices, HDMI switches, KVM extenders that run up to 300 metres over fibre, USB4 SSD enclosures and the cables to go with them.
The newer range is aimed at mixed-device desks. There are Thunderbolt 4 models built for Apple Studio Displays at up to 5K120 or dual 6K60, DisplayLink units that drive triple 4K60 from a laptop, and DisplayPort 1.4 and HDMI 2.1 switches rated for dual 8K60 or 4K144. A product finder quiz on the site narrows the list by how many computers and monitors you have.
The feature that matters most is EDID emulation. On a plain KVM, the computer you switch away from decides the monitor has been unplugged, so your windows pile onto one screen or resize themselves. TESmart's switches hold the display identity open on each output, which is why testers keep returning to them.
What a TESmart KVM costs
These are the prices listed on tesmart.com in October 2026, for the US store.
| Model | What it covers | Price |
|---|---|---|
| 4-port HDMI KVM kit | 4 computers, 1 monitor | $169.99 |
| 2-port dual-monitor kit (HDMI + DP) | 2 computers, 2 monitors | $239.99 |
| DKS202-M24 (2×2 DP 1.4) | 2 computers, 2 monitors, 8K60 or 4K144 | $329.90 |
| DKS202-MC24 with SmartClip | Adds copy and paste between the two PCs | $369.00 |
| 16-port HDMI KVM (4K30) | Racks, labs and server rooms | $379.00 |
| 2×3 DP 1.4 | 2 computers, 3 monitors | $429.90 |
| DKS402-M24 (4×2 DP 1.4) | 4 computers, 2 monitors | $469.00 |
| TKS202-X4 Thunderbolt | 2 Macs, 2 Apple Studio Displays | $799.00 |
| Certified refurbished DP switch | Returned stock, same hardware | From $109.79 |
For context, ATEN's CS1942DP, a two-port dual-display 4K DisplayPort switch, carries a $454 list price and sells for roughly $289 to $339 across CDW, B&H and Newegg. TESmart's DKS202-M24 sits inside that bracket at $329.90 while quoting 8K60 or 4K144 and adding a network hub.
Several routes exist to pay less than list. TESmart runs a trade-in programme worth up to 50% credit on an old switch, a certified-refurbished line at up to half price, an outlet section, a member points scheme that converts points into money off, and volume pricing from five units. Check what is live before you pay list price.
What testers and owners agree on
The hardware reviews are consistent. FunkyKit scored the HDK0402A1U 8.4 out of 10 in March 2023 and gave it a Recommended badge, praising the mix of HDMI and DisplayPort inputs, 4K60 and 1080p240 support, the 599g chassis and three ways to switch: front button, IR remote and keyboard hotkeys.
A May 2025 teardown of the HDC202-X24 Thunderbolt 4 unit reached the same place from the inside. The reviewer confirmed that both PCs keep their own network connection through the built-in dual Ethernet, that audio carries across a switch with no audible gap, that EDID preservation restores the monitors instantly, and that a split-desktop mode can show one screen from each computer.
Published testing puts the switch itself at roughly two to three seconds, which is quick for high-resolution signalling. Owner reviews echo the practical upside: one buyer quoted on TESmart's own store wrote that the purchase worked so well they bought a second unit, one for work and one for home.
| Source | What it covers | What it says | Checked |
|---|---|---|---|
| FunkyKit | HDK0402A1U dual-monitor HDMI + DP | 8.4/10, Recommended | Mar 2023 |
| Dan Char (teardown) | HDC202-X24 Thunderbolt 4 | Features work; hardware called average; price high | May 2025 |
| ugly-fixes.com | HKS202-E23 | EDID active in one mode only | Oct 2026 |
| Newegg listing | HKS0402A1U dual-monitor HDMI | 4 out of 5 from 11 ratings | Oct 2026 |
| Amazon.ca listing | Dual-monitor 4K60 HDMI KVM | 3.7 out of 5 from 76 ratings | Oct 2026 |
| Trustpilot (tesmart.de) | Buying and after-sales | 3 out of 5 from 23 reviews | Oct 2026 |
| AnandTech forums | Long-term owner reports | Mixed | Oct 2026 |
| TESmart policy pages | Shipping, returns, warranty | Primary source | Oct 2026 |
Where the reports split
Short-term tests and long-term ownership tell slightly different stories, and it is worth knowing both before you spend $300 or more.
Expert tests of new units are positive. On the AnandTech forums, a poster who had recommended TESmart switches for years wrote that they had stopped doing so because ports on their units began failing after extended use, including USB ports that left a keyboard and mouse dead on one input. Other owners in the same category of thread report the opposite, describing TESmart units as the first switches they owned that lasted beyond a year.
Retailer scores show the same spread. The Newegg listing for the dual-monitor HDMI model averages 4 out of 5 across 11 ratings, while the Canadian Amazon listing averages 3.7 out of 5 across 76.
After-sales reports are the weakest part of the picture. Trustpilot's 23 reviews of the German store average 3 out of 5: one customer singles out a support agent as fast and genuinely helpful, while others describe waiting on replies about returns. Trustpilot's own data shows TESmart responding to every negative review, typically after more than a month.
The practical reading is that the hardware does the job it is bought for, and the paperwork around a problem is where you want to be organised. Registering the product and buying direct both work in your favour here.
What works well, and what to check
What works well
- EDID emulation on each output keeps window layouts intact across a switch, confirmed by both expert tests.
- Switching takes roughly two to three seconds in published testing, with no black-screen renegotiation.
- Dual Ethernet on the Thunderbolt model keeps both computers online at once, verified in the teardown.
- Audio carries across a switch with no audible delay, per the same teardown.
- The range runs from 2 to 16 computers, plus matrices and extenders up to 300 metres over fibre.
- Free US and UK shipping on every order, quoted at 3 to 5 business days on the merchant's own banner.
- Up to 5 years of warranty cover once you register the product, as 1 year plus 4 extra.
What to know before you buy
- Buy from tesmart.com if you want the 30-day window: the refund policy excludes items bought from third-party retailers.
- On a non-quality return you pay the postage back; TESmart covers it when the fault is theirs.
- Check the USB spec on the exact model you want. FunkyKit's unit was USB 2.0, and the teardown found a 5Gb/s hub on a Thunderbolt-class product.
- If you plan to run both PCs through the KVM's network port, test your line speed after fitting it. One owner report measured 100Mbps through the switch against 900Mbps direct.
- Confirm which mode gives you EDID on your model. An independent review of the HKS202-E23 found it active in one mode only.
- Thunderbolt models supply 60W of laptop charging, which the teardown notes is short of what a laptop with discrete graphics draws.
- Register the product on arrival and keep the order number. Returns go to [email protected], and the policy promises a first reply within 48 hours.
- Entry price is $169.99 for four computers on one monitor; the dual-monitor DisplayPort models start at $329.90.
- EDID emulation is the reason to pick this category, and TESmart puts it on each output.
- Returns run 30 days from delivery, refunded within 5 business days of the warehouse receiving the unit.
- Warranty reaches 5 years, but only if you register the product.
- Buying direct keeps you inside TESmart's own returns process; retailer purchases do not qualify.
Who a TESmart KVM suits
The best fit is a desk where two or more machines share good monitors, and where the alternative is unplugging cables several times a day. A work laptop and a personal desktop on the same pair of 4K screens is the classic case, and it is the one the EDID handling is built for.
Mac owners get unusual coverage. The Thunderbolt line is one of the few KVM ranges that targets the Apple Studio Display directly, at up to 5K120 or dual 6K60, which most switches simply cannot carry.
High-refresh gamers are the other group the specs serve: the DisplayPort 1.4 and HDMI 2.1 models quote 4K144 and dual 8K60, so a gaming PC and a work machine can share one high-refresh panel without dropping the panel's rating.
IT teams and labs are covered at the other end, with 8-port and 16-port rack units carrying RS232 and LAN control, and wholesale pricing from five units.
When another brand fits better
Level1Techs DP 1.4 KVM. Reviewers rate it the cleanest DisplayPort passthrough in the category for 4K144 dual-monitor work. It sells direct and goes out of stock often, and it costs more, so it suits people for whom signal purity outranks price and availability.
ATEN CS1942DP. A two-port dual-display 4K DisplayPort switch from a long-established brand, widely stocked through CDW, B&H and Newegg at roughly $289 to $339. Worth comparing if you want a dealer network and local support channels behind the purchase.
StarTech 129N-USBC-KVM-DOCK. A dock-shaped USB-C KVM with dual 4K60, 90W power delivery and 10Gbps USB, recommended for Mac laptops that need real charging through the same cable. Consider it if 60W is not enough for your machine.
TESmart questions buyers ask
Who makes TESmart KVM switches?
TESmart is an electronics manufacturer based in Shenzhen, Guangdong, China, selling KVM switches, HDMI matrices, extenders and accessories. The company says its first KVM launched in 2013 and traces the engineering behind the brand to 2004. Its US store runs on Shopify and returns are handled from a warehouse in Rancho Cucamonga, California.
Does TESmart ship free to the US and UK?
Yes. The merchant's own banner states free US and UK shipping on every order, with delivery quoted at 3 to 5 business days. TESmart lists the US and UK as its served markets.
What is TESmart's return policy?
Thirty days from delivery for anything bought on tesmart.com. You email [email protected] with the order number, proof of purchase and photos or video, and support replies within 48 hours with the return address. Refunds are processed within 5 business days of the warehouse receiving the item. Products bought from third-party retailers are not covered, and items must come back in their original packaging with all accessories.
How long is the TESmart warranty?
Up to 5 years, structured as 1 year plus 4 extra that you claim by registering the product. Past the 30-day return window, TESmart offers repair or a same-model replacement rather than a refund.
Do TESmart KVM switches work with Mac and the Apple Studio Display?
Some models do. The Thunderbolt 4 line is built for Apple Studio Displays specifically, at up to 5K120 on a single display or dual 6K60 on two. Check the listing for your display and cable type, because the standard HDMI and DisplayPort models do not carry those resolutions.
Does a TESmart KVM switch support 4K at 144Hz?
The DisplayPort 1.4 and HDMI 2.1 models do, quoting dual 8K60 or 4K144. The older and cheaper HDMI kits are rated to 4K60, and the 16-port rack unit to 4K30, so match the model to the refresh rate your monitor actually runs.
Bottom line
Our compiled estimate is 7.6 out of 10, held at moderate confidence because the evidence is other people's testing rather than ours. The hardware case is strong and consistent across two independent expert tests: EDID emulation that keeps your desktop where you left it, fast switching, and a range that covers two computers on a laptop dock through to sixteen in a rack.
The part to be deliberate about is the purchase itself. Buy direct rather than through a marketplace, register the unit on arrival for the extra four years of warranty, and keep your order number to hand. Check the trade-in credit, refurbished stock and outlet offers before paying list, because the gap between those and the sticker price is real.
