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Logitech G840 XL Computer Mice

Logitech G840 XL Computer Mice

By Logitech · Computer Mice · Desk & Streaming Setup · More from Logitech

  • 900 x 400 x 3 mm (35.4 x 15.7 x 0.1 in)
  • 3 mm (0.1 in) thickness
  • Cloth surface with rubber base
  • 900 x 400 mm full-desk coverage

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Used, refurbished, open-box

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Problems, parts and running costs

Summary

A 900 × 400 × 3 mm cloth desk mat with a moderate-friction surface and a rubber base, for buyers wanting full-desk coverage with a low profile. Check the edges before you commit: they are heat-treated, not stitched, and owners report fraying and a harsh wrist edge over time.

Strengths

  • Full-desk coverage fits a keyboard plus mouse with room for low-DPI swipes.
  • Rubber base stays put under aggressive movement.
  • Consistent, moderate friction suited to control.
  • Easy to clean with a damp cloth.
  • Rolls up into the included tube for transport.
  • Surface described as validated against Logitech’s own sensors.

Weaknesses

  • Unstitched, heat-treated edges fray and feel harsh on the wrist over time.
  • No spill resistance; cloth absorbs liquids.
  • Only 3 mm of cushioning feels firm on hard or uneven desks.
  • Slight edge waviness out of the tube that settles with use.
  • Rubber odor when new, dissipating within about a week.
  • Some speed-focused players describe the surface as slow (“mud”).

Verified specifications

ModelLogitech G840 XL (G840) Gaming Mouse Pad.
Dimensions900 × 400 × 3 mm (35.4 × 15.7 × 0.1 in).
Surfacecloth, performance-tuned, moderate friction.
Baserubber, anti-slip.
Materialscloth surface with rubber base.
Colorblack (standard); also printed-graphic editions.
Powernone; passive accessory.
Warranty1 year limited hardware.
Carbon footprint (manufacturer)6.83 kg CO2e.
Includedpad plus a reusable transport/storage tube.
Weightnot published by the manufacturer.
Full research notes and sources

Surface and tracking

The G840 XL is a deliberately simple product: a 900 × 400 mm cloth desk mat, 3 mm thick, with a performance-tuned moderate-friction surface and a rubber anti-slip base. The “performance-tuned for Logitech sensors” claim is a pairing and compatibility statement; modern optical sensors from other brands also track on it. No instrumented professional test of this pad was found; review sites are hands-on impressions, not lab data. Scores seen: 8.4/10 (bestgamingmice.net, 2026), 7.5/10 (Total Gaming Addicts, 2020), 8/10 (GeekTyrant). Linuxlookup noted slight waviness toward the edges fresh out of the tube and a rubber odor that dissipates within about a week.

Edges, cushioning and spills

Edges are heat-treated, not stitched. Review sites and owners report earlier fraying than stitched rivals, and a harsh edge on the wrist. The cloth absorbs liquids; there is no spill-proof coating. With only 3 mm of cushioning the pad feels firm on hard or uneven desks. Slight edge waviness out of the tube settles with use, and a rubber odor when new dissipates within about a week. Some speed-focused players describe the surface as slow (“mud”).

Cleaning, care and warranty

Clean with a damp cloth and avoid harsh chemicals. One review suggests a diluted vinegar solution, which is not manufacturer guidance. No spare parts are available for this product. Replacement is expected every few years based on owner reports of fraying.

At about $37.99 it is a reasonable full-desk pad for buyers wanting a validated, low-profile surface, especially with Logitech mice. Above about $50 value weakens; at $59–$80, thicker or coated alternatives (Razer Gigantus V2 XXL, Corsair MM350 Pro) offer more cushioning and stitched edges for similar or less money. Sibling pads: G640 $29.99, G240 $9.99. A 2026 review lists about $37.99, down from $49.99–$59 in older reviews. A TechPickStream review claims 4 mm thickness, stitched edges, $79.99 MSRP and a 2-year warranty; these conflict with the manufacturer’s 3 mm, heat-treated edges, about $37.99 street price and 1-year warranty. Treat that source as unreliable on those points.

Which model this is

This page covers the standard black Logitech G840 XL Gaming Mouse Pad, a passive cloth desk mat measuring 900 × 400 × 3 mm. The ASIN B0BHMN52LY is the standard black US retail variant. Logitech’s support page lists the model number (M/N) as “NA” for this product. All variants share the same 900 × 400 × 3 mm cloth-over-rubber construction; differences are artwork and packaging, not dimensions. Do not confuse it with the G640 (460 × 400 mm) or G240 (340 × 280 mm), which use the same surface in smaller footprints.

Sources

Manufacturer:

Independent reviews:

Owner reports:

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