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ASUS ROG Zephyrus S GX502 Series

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The ASUS ROG Zephyrus S GX502, released in mid-2019, is the ultra-slim 15.6-inch gaming laptop that packed 9th-gen Intel Core power and full-wattage NVIDIA RTX graphics into a chassis under 19mm thick and just under 2 kg. If you're trying to sell this laptop online, GadgetSalvation buys the Zephyrus S GX502 directly for cash through our trade-in service — no marketplace listing fees, no buyer haggling, no shipping risk. Before picking a configuration above, confirm your model code is GX502 (with a GV or GW suffix) and not one of its close relatives: the GX501 is the older 2017/2018 Zephyrus, the GX531 is a thinner Zephyrus S variant, the GX701 is the 17-inch Zephyrus S, and the GX502LWS / GX502LXS are the later 2020 "Super" refresh with 10th-gen Intel and RTX Super graphics — all different machines. Because your GPU, RAM, storage, and display refresh rate all affect resale value, select your exact components above for an instant cash offer.

Core hardware configurations

Processor (CPU)

  • Intel Core i7-9750H — 6 cores, 12 threads, up to 4.5 GHz boost, 12MB cache
  • 9th-gen Coffee Lake Refresh — the single CPU option across all GX502 configurations

Graphics (GPU)

  • NVIDIA GeForce RTX 2060 — 6GB GDDR6 (GX502GV)
  • NVIDIA GeForce RTX 2070 — 8GB GDDR6 (GX502GW)
  • Full-wattage (non-Max-Q) GPUs with ROG Boost up to 115W in Turbo mode
  • GPU switch toggles between G-SYNC and NVIDIA Optimus for gaming or battery life

Memory (RAM)

  • DDR4-2666 dual-channel
  • Shipped in 16GB or 32GB factory capacities
  • 8GB is soldered to the motherboard and cannot be removed; a single SO-DIMM slot is user-accessible
  • Maximum total capacity is 32GB (8GB soldered + a 24GB module); a matched 32GB total is needed to keep full dual-channel performance

Storage

  • M.2 PCIe NVMe SSD — no 2.5-inch drive bay
  • 512GB or 1TB factory capacities
  • Two M.2 slots supporting a RAID 0 array for faster load times

Display & audio

Display

15.6-inch FHD (1920 × 1080) IPS-level, in two refresh-rate configurations: 144Hz / 3ms (GX502GV) or 240Hz (GX502GW). Both cover 100% sRGB and support both G-SYNC and Optimus via the GPU switch — a rare combination for its era. Thin-bezel NanoEdge design.

Audio

Stereo speaker system with a smart-amp design tuned for clearer output at higher volume, plus dedicated headphone and microphone jacks.

Ports & connectivity

A useful port selection, though note there is no Thunderbolt 3 on this model. Because the side vents sit inboard, ports are placed toward the front edges — worth keeping in mind if you use a wired mouse.

Left Side
  • 1× Power connector (DC-in)
  • 1× RJ-45 Gigabit Ethernet
  • 1× HDMI 2.0
  • 1× USB 3.1 Gen 2 Type-A
  • 1× Microphone jack
  • 1× Headphone jack
Right Side
  • 1× USB 3.1 Gen 2 Type-C (DisplayPort output + Power Delivery; supports up to 65W USB-C charging for light use)
  • 2× USB 3.0 Type-A
  • 1× Kensington lock slot

Intel Wireless-AC 9560 (Wi-Fi 5) Bluetooth 5.0

Battery, build & more

Battery & charging

76Wh battery with a rated runtime up to roughly 8 hours in Optimus mode. Ships with a barrel-plug adapter; USB-C Power Delivery supports lower-wattage charging (up to 65W) for lighter workloads on the go.

Webcam

No built-in webcam. Like most slim ROG Zephyrus models of this era, the GX502 ships without an integrated camera — an external USB webcam is needed for video calls. We account for this in grading, so it won't be marked against your device.

Keyboard

Per-key RGB backlit keyboard with the keys shifted forward and a slim palm area, plus a side-mounted trackpad that doubles as a touch numpad. A magnetic wrist rest was included in the box.

Cooling (AAS)

Active Aerodynamic System that opens an extra intake vent as the lid lifts, increasing airflow by around 22%, alongside a self-cleaning anti-dust thermal module.

Build

Brushed-aluminum lid with an RGB-lit ROG logo. At 18.9mm thin and under 2 kg, ASUS rated it about 25% thinner and 42% lighter than a typical 15-inch laptop of the time.

Weight & dimensions

≈ 2.1 kg (5.11 lb); 360 × 252 × 18.9 mm (14.2" × 9.9" × 0.74").

Frequently asked questions

01 How do I confirm my laptop is the GX502 and not a GX501, GX531, GX701, or the 2020 "Super" refresh?
Read the model code on the underside label. This page covers the GX502 with a GV (RTX 2060) or GW (RTX 2070) suffix and a 9th-gen Core i7-9750H. If the code reads GX501, that's the older 2017/2018 Zephyrus; GX531 is a thinner Zephyrus S variant; GX701 is the 17-inch model; and GX502LWS or GX502LXS is the 2020 "Super" refresh with a 10th-gen Intel CPU and RTX Super graphics — none of which this page covers. The fastest tell-tale is the CPU: a Core i7-9750H confirms the original GX502. Our ASUS model-number guide shows exactly where to look.
02 Can I upgrade the RAM and storage, and does it affect my offer?
Partially. On the GX502, 8GB of RAM is soldered to the motherboard and cannot be removed — there is one open SO-DIMM slot, which caps total memory at 32GB. To keep full dual-channel performance you generally want the total to reach 32GB. Storage is more flexible: there are two M.2 PCIe NVMe slots (no 2.5-inch bay), both user-accessible, that can run a single drive or a RAID 0 array. When quoting, select the RAM and storage your machine has right now — added capacity can raise your offer.
03 Should I wipe my SSD or pull it before shipping?
Back up anything you want to keep to an external drive or the cloud, then sign out of Windows and any linked accounts before boxing the laptop. You don't need to open the chassis or pull the M.2 drives — and if your two SSDs run in a RAID 0 array, leave them in place for our team to handle. Every device we receive goes through our certified, multi-pass data sanitation process. Full details are on our data erasure protocols page.
04 Which GX502 configurations raise my trade-in value the most?
The GPU is the biggest value driver. A GX502GW with the RTX 2070 (8GB), the 240Hz display, 32GB of RAM, and a 1TB SSD commands a stronger offer than a base GX502GV with the RTX 2060 (6GB) and the 144Hz panel. Full 32GB memory and larger or dual SSD storage each lift the final amount as well. If this is your first time selling a laptop online, our first-time seller guide explains what to expect from quote to payout.
05 How does the trade-in and payout process work?
Pick your configuration above for an instant quote, ship the laptop to us with our free, insured prepaid label, and once it arrives and passes component testing, payment is approved within two business days. You can be paid by PayPal, Venmo, Zelle, CashApp, or a mailed physical check. New here? See our how it works overview. Selling several machines at once or clearing out an office? Our bulk selling program handles multi-device trade-ins directly.