The Anker 737 GaNPrime 120W remains a proven one-brick travel solution: it holds 120W across two or three devices, reaches 100W on a single port, and owners praise it after years on the market. The port math is quirky — USB-C2 plus USB-A caps at 24W — and the 187 g body can sag out of loose outlets.
— THE VERDICT · JUDGEANY EDITORSWhat the Anker 737 is
Launched in 2022 as part of Anker's GaNPrime lineup, the 737 (model A2148) is a 120W wall charger with two USB-C ports and one USB-A port. It uses gallium-nitride tech with PowerIQ 4.0 Dynamic Power Distribution and ActiveShield 2.0 temperature monitoring, weighs 6.6 oz (187 g), and has foldable prongs plus an included silicone stabilizer for wobbly outlets. One device on a single USB-C port can draw up to 100W — enough for most USB-C laptops — while the USB-A port tops out at 22.5W.
The port-split rules that actually matter
Anker's official port table is the most important spec on this charger. With two devices plugged in: USB-C1 + USB-C2 delivers 120W max combined, USB-C1 + USB-A also 120W max — but USB-C2 + USB-A is capped at just 24W combined. With all three ports in use, the total is still 120W. As one owner quoting the manual put it: the charger can output the full 120W whether two or three ports are in use, but no single port exceeds 100W. Practical takeaway — plug your second high-power device into the top USB-C (C1), not C2 alongside USB-A.
What published tests found
ChargerLAB ran a full charging-compatibility test of the GaNPrime 120W 737, noting the HFB topology co-developed with Infineon and the dynamic power distribution in action. MacSources' hands-on review charged a 13-inch M1 MacBook Air from 57% to 79% in 30 minutes. Ichiken's engineering teardown, run on Teledyne LeCroy test gear, measured efficiency that was high but below Anker's 95% claim, with surface temperature peaking at 82°C. Expect real warmth when the brick is working hard. We don't run a lab; these are published findings, and scores below are editorial judgments based on them.
What owners praise — and complain about
Owners consistently praise the 737 as a one-brick travel replacement: one outlet for a laptop, a phone, and earbuds or a tablet at the same time. It holds up on MacBooks, Pixels, Galaxies, and Nothing phones with fast charging on multiple devices at once. The recurring complaints are physical: at 187 g it is long and heavy for foldable prongs, and owners report it sagging or falling out of loose wall outlets — the silicone stabilizer exists for a reason. The printed port labels fade after months of use, and isolated failure reports exist (one owner got a dead unit replaced under warranty by Anker support).
Who should buy it
Travelers and remote workers who want a single charger for a laptop plus a phone and accessories should consider it — check it live on Amazon. Skip it if you need 140W PD 3.1 Extended Power Range, want full-speed charging on Dell XPS 15 (9500/9510), Alienware X14 or Precision 5570 (Anker notes Dell's proprietary protocol limits these), or expect 100W from two laptops simultaneously — the 120W ceiling is shared, not per-port.