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ASUS ROG Zephyrus M GU502

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The ASUS ROG Zephyrus M GU502 family covers two closely related generations of ASUS's slim 15.6-inch gaming laptop built in the same magnesium-alloy chassis: the 2019 Zephyrus M (models GU502GU, GU502GV, and GU502GW, including the Glacier Blue "Studio Edition") with a 9th-gen Intel Core i7-9750H, and the 2020 Zephyrus M15 (models GU502LU, GU502LV, GU502LW, and GU502LWS) with a 10th-gen Intel Core i7. Graphics range from the GTX 1660 Ti up to the RTX 2070 Super Max-Q depending on the exact model code, and displays span 144Hz and 240Hz Full HD panels plus a 4K option exclusive to the 2020 version — so the letters after "GU502" on your bottom panel directly determine what your laptop is worth. Select your configuration using our tool above to see an instant cash offer — Gadget Salvation's online trade-in service buys these laptops directly from you for cash, a much simpler route than hunting for a private buyer.

Which Zephyrus do you have? Check before you quote

ASUS used the "Zephyrus" name on many different laptops between 2017 and today, and several of them look nearly identical. The fastest way to be sure: flip your laptop over and read the model code on the bottom sticker.

✓ This page covers: GU502 (2019–2020)

  • GU502GU — 2019 Zephyrus M, GTX 1660 Ti
  • GU502GV — 2019 Zephyrus M, RTX 2060
  • GU502GW — 2019 Zephyrus M, RTX 2070 (also sold as the Studio Edition)
  • GU502LU — 2020 Zephyrus M15, GTX 1660 Ti
  • GU502LV — 2020 Zephyrus M15, RTX 2060
  • GU502LW / GU502LWS — 2020 Zephyrus M15, RTX 2070 Max-Q / RTX 2070 Super Max-Q
  • Longer retail codes like GU502LW-BI7N6 belong here too — everything after the dash just describes the regional configuration

✗ Not this page: lookalike siblings

  • GA502 (Zephyrus G / G15) — the budget twin with an AMD Ryzen processor; visually very similar, but a different laptop with a different value
  • GX502 (Zephyrus S15) — the premium 2019 sibling with the rising AAS cooling flap on the bottom
  • GM501 (Zephyrus M, 2018) — the previous-generation Zephyrus M
  • GU603 (Zephyrus M16, 2021+) — the 16-inch successor line

Sticker worn off or hard to read? Our guide to finding your ASUS laptop's model number shows you how to pull the exact model code from Windows in a couple of clicks — no screwdrivers or technical skills needed.

Core hardware configurations

Processor (CPU)

  • Intel Core i7-9750H — 6 cores, 12 threads, up to 4.5 GHz boost (all 2019 models: GU502GU/GV/GW)
  • Intel Core i7-10750H — 6 cores, 12 threads, up to 5.0 GHz boost (2020 models: GU502LU/LV/LW/LWS)
  • A small number of top-tier 2020 LWS configurations shipped with the 8-core i7-10875H

Graphics (GPU)

  • NVIDIA GeForce GTX 1660 Ti — 6GB GDDR6 (GU502GU, GU502LU)
  • NVIDIA GeForce RTX 2060 — 6GB GDDR6 (GU502GV, GU502LV)
  • NVIDIA GeForce RTX 2070 / RTX 2070 Max-Q — 8GB GDDR6 (GU502GW, GU502LW)
  • NVIDIA GeForce RTX 2070 Super Max-Q — 8GB GDDR6 (GU502LWS only, 2020)
  • The GPU is locked to the model code — it was never a separate checkbox at checkout, so your bottom sticker tells you exactly which chip is inside

Memory (RAM)

  • 8GB or 16GB soldered to the motherboard (varies by configuration) plus one SO-DIMM slot — factory options shipped as 8GB, 16GB, 24GB, or 32GB totals
  • DDR4-2666 on 2019 models; DDR4-2933/3200 on 2020 models
  • Partially upgradable: the single stick can be swapped or added, but the soldered portion is permanent

Storage

  • M.2 PCIe NVMe SSD — 512GB or 1TB factory capacities
  • Two internal M.2 slots on both generations; some 2020 configurations shipped with dual 512GB drives in RAID 0
  • If a second drive was added, count the total capacity across both when quoting

Display & audio

Display

15.6-inch anti-glare IPS-level panels with slim bezels, Pantone-validated color, and NVIDIA Optimus on every version. The 2019 Zephyrus M offered FHD (1920 × 1080) at 144Hz or 240Hz/3ms with 100% sRGB. The 2020 Zephyrus M15 kept the 144Hz and 240Hz/3ms FHD options and added a 4K UHD (3840 × 2160) 60Hz panel with 100% Adobe RGB aimed at creators — the 4K screen exists only on 2020 models.

Audio

Dual 2.5W stereo speakers with ASUS Smart Amp technology and a built-in array microphone.

Ports & connectivity

Unusually for a laptop this thin, the GU502 keeps a full-size Gigabit Ethernet jack on both generations. Two absences to know about: there is no SD card reader, and the USB-C port is not Thunderbolt — it's USB 3.2 Gen 2 with DisplayPort output and Power Delivery charging support.

Left Side
  • 1× Power adapter input (DC-in)
  • 1× RJ-45 Gigabit Ethernet
  • 1× HDMI 2.0b
  • 1× USB-A 3.2
  • 1× 3.5mm headphone jack + 1× 3.5mm microphone jack (separate jacks, not a single combo port)
Right Side
  • 1× USB-C 3.2 Gen 2 (DisplayPort 1.4 output and Power Delivery — the laptop can trickle-charge over USB-C, but gaming requires the barrel adapter)
  • 2× USB-A 3.2
  • 1× Kensington lock slot

Wi-Fi 5 (802.11ac) — 2019 models Wi-Fi 6 (Intel AX201) — 2020 models Bluetooth 5.0 Gigabit Ethernet No card reader No Thunderbolt

Battery, build & more

Battery & charging

4-cell 76 Whr battery on both generations, shipped with a 180W or 230W barrel adapter depending on GPU tier. USB-C Power Delivery charging works for travel and light use.

Camera & mic

The GU502 has no built-in webcam on any model or generation — ASUS omitted it to slim the bezels. Video calls require an external USB camera. A missing webcam on your unit is normal for this model, not a defect.

Keyboard

RGB-backlit chiclet keyboard with Aura Sync lighting, 1.4mm key travel, and dedicated volume and ROG hotkeys above the function row.

Cooling

Self-cleaning dual-fan thermal design with anti-dust tunnels, managed through Armoury Crate performance profiles (Silent, Performance, Turbo).

Weight

≈ 1.9 kg (4.19 lb) for 2019 models; ≈ 2.0 kg (4.4 lb) for 2020 models.

Dimensions & finish

360 × 252 × 18.9 mm (14.2" × 9.9" × 0.74") magnesium-aluminum alloy chassis. Finishes: Brushed Black or Glacier Blue (2019), Prism Black or Prism Gray (2020).

Frequently asked questions

01 How do I find out which GU502 model I have?
Flip the laptop over and find the label on the bottom panel. The model code starts with GU502 followed by two or three letters: a G as the next letter (GU502GU, GU502GV, GU502GW) means the 2019 Zephyrus M, while an L (GU502LU, GU502LV, GU502LW, GU502LWS) means the 2020 Zephyrus M15. No sticker? Press the Windows key, type "System Information," and check the System Model line — the same code appears there. Our ASUS model number guide walks through it with screenshots.
02 My sticker says GA502 or GX502 instead of GU502 — is that the same laptop?
No — and this is the most common mix-up with this laptop, because ASUS sold three near-identical-looking 15-inch Zephyrus machines side by side. The GA502 (Zephyrus G / G15) uses an AMD Ryzen processor and sat at a lower price tier, while the GX502 (Zephyrus S15) was the premium sibling with a hinged cooling flap on the bottom. All three carry different resale values, so quoting under the wrong model produces an offer that won't survive inspection. If your code isn't GU502, visit our ASUS ROG sell page and pick the series that matches your sticker.
03 Can I sell a GU502 with a weak battery, cosmetic wear, or other problems?
Yes. We buy GU502 units in every working state — a battery that no longer holds much charge, loud or grinding fans, worn key legends, scuffed magnesium panels, dead RGB lighting, or even a cracked screen. Just answer the condition questions honestly in the quote tool above and the offer adjusts automatically, so the price you lock in is the price you're paid after inspection.
04 How does the online trade-in process actually work?
Many people don't realize trading in a gaming laptop online is even an option — but it's far easier than dealing with marketplace listings, lowball offers, and meetup logistics. Lock in a quote with the tool above, and we email you a free, fully insured shipping label. Box up the laptop, drop it off, and once it passes inspection at our lab you're paid within two business days via PayPal, Venmo, Zelle, CashApp, or a mailed check. The full walkthrough is on our How It Works page, and our guide to selling a gaming laptop has tips on prepping your machine for the best payout.
05 Should I wipe my data or remove the SSDs before shipping?
Back up anything you want to keep — game saves, photos, documents — to the cloud or an external drive, and sign out of your Windows, Steam, and other accounts. Please leave the M.2 drives installed: the GU502 can hold two SSDs, and on RAID 0 configurations the pair works as a single unit, so pulling one makes the laptop unbootable and lowers its value. Our technicians run certified data sanitization on every incoming drive, so nothing personal survives the process. Details are on our data erasure protocols page.