The UGREEN HDMI 2.1 Certified Cable is a 6.6-foot Ultra High Speed HDMI lead from one of the better-known accessory brands in the PC and AV space. UGREEN’s HDMI 2.1 cable carries the full 48 Gbps bandwidth and the HDMI Forum’s Ultra High Speed certification mark, which is the most rigorous third-party verification in the category — only cables that pass Forum-administered third-party testing can carry the holographic certification label and the associated QR code that links back to the Forum’s database. The 6.6-foot length is the bread-and-butter HDMI 2.1 deployment distance — long enough to span a console-to-TV or PC-to-monitor run with slack for cable management, short enough that signal integrity is straightforward. At around $14 it is competitively priced against Zeskit and Highwings at the same length. This UGREEN HDMI 2.1 review covers bandwidth, gaming features, build, compatibility, length and value.
Prime UGREEN HDMI 2.1 Cable Certified 8K 6.6FT Ultra High Speed HDMI Cord Braided 48Gbps 4K@240Hz 10K@60Hz with Dynamic HDR eARC Dolby Atmos HDCP Compatible with PS5 PS4 Xbox Roku TV HDTV Blu-ray Projector
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UGREEN HDMI 2.1 at a Glance
| Component | Specification |
|---|---|
| Type | HDMI 2.1 (Ultra High Speed HDMI), Forum-certified |
| Bandwidth | 48 Gbps |
| Max resolution + refresh | 4K@120Hz, 8K@60Hz, 4K@144Hz with DSC on PC |
| HDR support | Dynamic HDR (HDR10+, Dolby Vision), HDR10 |
| eARC support | Yes — full HDMI 2.1 eARC for Dolby Atmos and DTS:X |
| VRR / FreeSync / G-Sync | VRR yes; HDMI-FreeSync supported; G-Sync Compatible over HDMI on RTX 30/40/50 |
| Cable length | 6.6 feet (2 metres) |
| Connector type | Gold-plated, nylon-braided jacket, machined zinc-alloy connector shells |
| Approx price | Around $14 |
Bandwidth & Resolution Support
The UGREEN carries the full HDMI 2.1 48 Gbps and the holographic Ultra High Speed certification mark from the HDMI Forum. At 6.6 feet that certification translates into a cable that reliably negotiates every HDMI 2.1 mode — 4K@120Hz with 10-bit RGB on console or RTX/Radeon PC, 8K@60Hz, 4K@144Hz on PC with Display Stream Compression. The HDMI Forum certification is more rigorous than informal 8K marketing labels and verifies the cable carries the full bandwidth alongside the EMI shielding the spec requires to stop the cable interfering with adjacent consumer electronics. For a buyer who values certification over headline build features, the UGREEN’s Forum certification is the differentiator at this price point.
HDR, eARC & VRR Features
The UGREEN carries the complete HDMI 2.1 feature set. Dynamic HDR runs HDR10+ and Dolby Vision per-scene metadata cleanly to a HDR-capable panel. eARC carries Dolby Atmos, DTS:X, Dolby TrueHD and DTS-HD MA from a TV back to a soundbar or AVR — the standard modern home-cinema topology. VRR removes tearing on PS5, Xbox Series X and HDMI 2.1 PC GPUs. HDMI-FreeSync and HDMI G-Sync Compatible both ride on the same cable for the relevant AMD and NVIDIA setups. The Forum certification means the cable is third-party tested to handle all of these features together under bandwidth pressure, which matters because HDR-plus-VRR-plus-4K@120Hz is a real-world bandwidth-heavy combination that uncertified cables sometimes choke on.
Build Quality & Durability
The UGREEN uses a nylon-braided jacket with machined zinc-alloy connector shells — heavier and denser than aluminium, with the premium handfeel that UGREEN’s accessory range is known for. The zinc-alloy connectors resist long-term wear better than aluminium and feel reassuringly solid when plugged in. Gold-plated 24K pins handle long-term plug cycles. Generous moulded strain relief at the cable’s emergence from the connector is one of the design details that distinguishes the UGREEN from cheaper braided cables, where the strain relief is sometimes inadequate and the cable develops kinks at the connector base over time.
Compatibility — PS5/Xbox/PC
The UGREEN handles every HDMI 2.1 source: PS5 and PS5 Pro at 4K@120Hz with VRR and HDR; Xbox Series X at the same plus FreeSync; every RTX 30/40/50 and Radeon RX 6000/7000/9000 PC GPU at whatever the GPU is configured for. The HDMI Forum certification is particularly useful for AV-enthusiast multi-source setups via HDMI switches or AVRs, where multiple bandwidth-heavy HDMI 2.1 streams compete for handshake stability. A certified cable removes itself as a variable when debugging a flaky multi-source HDMI 2.1 install, which is the most common real-world problem in AV-enthusiast setups — the symptom is intermittent handshake drop-outs that appear to be random but are actually triggered by a bandwidth-heavy combination like HDR plus VRR plus Dolby Atmos. On HDMI 2.0 panels the cable backward-negotiates and runs at the panel’s HDMI 2.0 limit.
Length & Signal Integrity
6.6 feet is comfortably within HDMI 2.1’s passive copper safe range. Signal integrity at this length is straightforward with any reasonable-quality cable, and the UGREEN’s full 48 Gbps Forum-certified rating is achieved with substantial margin. The cable does not need an active chip and does not benefit from fibre. At 6.6 feet the build and certification are the differentiators rather than the bandwidth math, which is why UGREEN’s zinc-alloy connectors and Forum certification justify the price. UGREEN sells the same certified design in longer 10ft and 15ft variants for buyers whose installation needs more length, and the brand’s 15ft variant uses thicker conductors than the 6.6ft cable to maintain the 48 Gbps rating at the longer length.
Verdict
At around $14 the UGREEN HDMI 2.1 Certified Cable is a credible premium-build option at the 6.6-foot length. The HDMI Forum’s Ultra High Speed certification is the most rigorous third-party verification in the category, and the zinc-alloy connector shells and nylon braid place the cable in the upper tier of HDMI 2.1 build quality at the price. For a buyer who values certification and a well-known accessory brand, it earns a recommendation. The 6.6-foot length suits the most common HDMI 2.1 deployment scenarios. Compared with the Zeskit at a similar price, the UGREEN’s zinc-alloy connectors are denser and feel more premium in hand; the Zeskit’s slim hoods are better for crowded TV input panels. Compared with the cheaper Highwings at the same length, the UGREEN adds Forum certification and the zinc-alloy connector upgrade. All three carry the same 48 Gbps — the choice is build preference, brand trust and whether Forum certification matters to the buyer.
Frequently Asked Questions
What does HDMI Forum certification add beyond 48Gbps marketing?
Forum certification is third-party verified testing for the full 48 Gbps bandwidth plus the EMI shielding the spec requires. It is the most rigorous certification available for HDMI 2.1 cables. Uncertified cables marketed as 8K sometimes do not carry the full bandwidth in practice; certified cables are tested to do so.
Does the UGREEN cable support 4K@120Hz on PS5?
Yes. The full HDMI 2.1 48 Gbps carries 4K@120Hz with VRR and HDR — the configuration the PS5 and PS5 Pro target in modern titles.
Is the zinc-alloy connector worth caring about?
It does not change signal. The zinc-alloy connector resists long-term wear better than aluminium and feels denser in hand, which matters for a cable that gets plugged and unplugged regularly. For a permanent install, aluminium is fine; for an enthusiast setup, zinc-alloy is the upgrade.
Will the cable work for eARC to a soundbar or AVR?
Yes. The cable carries HDMI 2.1 eARC, which is the standard way to send uncompressed Dolby Atmos and DTS:X object-based audio from a TV back to a soundbar or AVR over the same HDMI cable.
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