TCL A400M 75 Inch QD-Mini LED 4K Google TV 2026
Official Goods
- Official HK version with manufacturer warranty
- 100% brand new
- Kwun Tong physical store — view stock & pay in store (by appointment)
- Fully compatible in Hong Kong — local TV channels plus these popular streaming platforms
- On-site installation available
Check Stock & Delivery on WhatsApp
Message us before purchase · Usually reply within minutes
Pay in store
Pickup available at Elechid
Usually ready in 24 hours
TCL 75-Inch A400M QD-Mini LED 4K Smart TV 2026 Overview
The A400M is the TCL in our licensed line-up that puts numbers on the table: precise local dimming, a native 4K 144Hz panel and the full FreeSync Premium Pro gaming set, in an ultra-slim flat-back cabinet that sits flush on a wall. Like every TCL in our store, this is Hong Kong licensed stock - manufacturer warranty, native Hong Kong reception, local energy label.
Key Official Specifications
| Model | 75A400M (2026, Hong Kong licensed) |
| Display Technology | QD-Mini LED quantum dot Mini LED backlight |
| Local Dimming | Precise dimming - licensed data lists up to 240 zones for the 75-inch (TCL's official series page states a series maximum of 448, varying by size) |
| Panel | HVA panel, 5000:1 native contrast; up to 93% DCI-P3 wide colour gamut |
| Resolution | 4K UHD (3840 x 2160) |
| Refresh Rate | Native 4K 144Hz; up to 288Hz in 1080p mode (official wording) |
| Gaming | AMD FreeSync Premium Pro, VRR, ALLM, Game Master, Game Bar, Superwide Gameview (21:9/32:9), Aiming Aid |
| Connectivity | HDMI 2.1 (total port count not published) |
| Processor | TSR AiPQ Processor |
| Audio | Sound by ONKYO Hi-Fi (officially rated 35% sound field widening) |
| Smart Platform | Google TV (officially listed with Gemini); AI agents (Cinematic, Office) |
| Features | Art Gallery, Ambient Mode, Kids Profile |
| Design | Ultra-slim flat-back cabinet |
The HDR format list, HDMI total count, speaker wattage and cabinet dimensions are not published on TCL's official pages - and we do not guess. WhatsApp us for the Hong Kong licensed spec sheet before ordering if you need them confirmed.
4K 144Hz Is Native; 288 Belongs to 1080p - TCL Says So Itself
The A400M's panel is native 4K 144Hz: a PS5 or Xbox Series X runs its full 4K 120Hz, and PC gaming reaches 4K 144Hz. TCL separately writes "1080p at 288Hz" - meaning that 288 figure only exists after dropping to 1080p, a mode for competitive players; for everyday gaming the 4K 144 row is the one to read. FreeSync Premium Pro, ALLM, Game Master and Game Bar are all present, plus the 21:9 and 32:9 Superwide Gameview modes.
Local Dimming: the Licensed TCL That Shows Its Numbers
QD-Mini LED lives or dies by light control. The A400M's licensed data lists up to 240 independent dimming zones on the 75-inch (TCL's official series page states up to 448 across the series, rising with size) - highlights and shadows get handled zone by zone, so films show less blooming and firmer blacks. The HVA panel starts from a 5000:1 native contrast ratio, and the two together are where its picture confidence comes from.
Placement and Design
The A400M runs an ultra-slim flat-back design - wall-mounted, the whole cabinet sits flush with no bulge. Off-screen there are the Art Gallery and ambient modes, and a Kids Profile interface for households with children.
Choosing Within Our Licensed TCL Line
Want documented dimming zones plus 4K 144Hz - the A400M. For flagship-grade dimming above it, see the C series C6K; the previous-generation P7K 65-inch remains the value pick. For how TCL's range tiers up: our TCL TV lineup guide.
Licensed Stock: Warranty and Reception
This is Hong Kong licensed stock: one, warranty runs through TCL's official Hong Kong channel (per our warranty policy, licensed sets carry the brand's own warranty - term as published by TCL Hong Kong); two, the spec follows Hong Kong's broadcast standard (DTMB), so aerial reception of local free channels is native and our installer tunes it for you. Licensed stock buys you plug-in-and-it-works assurance.
Delivery and Installation
75-inch delivery with tabletop setup is $600, or $1,200 with wall mounting (bracket included); free pickup at our Kwun Tong shop, which is collection-only with no demo units and no side-by-side viewing. Next-day delivery, the driver calls an hour ahead, no deliveries on Sundays and public holidays. Details on the delivery and installation page. We can also take your old TV away on delivery (40-inch or larger, up to 10cm thick, non-CRT).
Frequently Asked Questions
Is the A400M genuinely 4K 144Hz?
Yes - officially a native 4K 144Hz panel. The separate 288Hz figure applies in 1080p mode only (TCL's own wording: "1080p at 288Hz") - we keep the two numbers apart.
How many dimming zones does the 75-inch have?
The licensed data lists up to 240; TCL's official series page states up to 448 across the series, varying by size. WhatsApp us for the licensed spec sheet if you want it confirmed in writing.
How does the licensed warranty work?
Hong Kong licensed stock runs on TCL's official Hong Kong warranty channel, with the term as published by TCL Hong Kong - a different system from our international-version TVs.
Will it receive Hong Kong free-to-air channels over an aerial?
Yes. Licensed stock follows Hong Kong's DTMB broadcast standard, so local free-to-air reception is supported natively, and our installer tunes the channels for you.
For more large-screen options, see the 75-inch collection. Specifications follow TCL's official pages; for items TCL does not publish - HDR formats, HDMI total count, dimensions - the Hong Kong licensed spec sheet is the reference, and you are welcome to WhatsApp us to confirm before ordering.
