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C1C2A1
Illustration of the port layout, not a product photo.

AnkerModel B121A

Anker Nano Charger (70W, 3 Ports)

A 120g, three-port GaN charger with folding prongs, 70W from either USB-C port and a published split for each combination.

Wattson's Pick: Light three-port travel charger

Meets our travel criteria (folding plug, ≤ 150g published weight) with 60W+ from a USB-C port and a complete published split. Selected on documented specs, not hands-on testing.

  • Laptops
  • Several devices
  • Travel
Total
70W
Best single port
70W
Ports
2× USB-C + 1× USB-A
Weight
120g

What to know: With three devices, the second and third get only 7.5W each.

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Manufacturer-stated specifications. Checked on . Not hands-on tested. See sources

Overview

Anker's Nano 70W has two USB-C ports rated at 70W each when used alone, plus a 33W USB-A port. It weighs a stated 120g and has a foldable plug.

With two ports in use Anker lists two possible modes: 45W + 22.5W, or 60W + 5W. It doesn't say exactly when the second mode engages, so we only rely on the 45W + 22.5W split. All three ports together give 45W + 7.5W + 7.5W.

Best for: Travelling with a laptop, phone and earbuds.

Why it's listed

Brand: Anker

Certification and regulatory records

Certification pending: We couldn't confirm a listing in a certifier's database yet.

Independent tests

No independent tests yet: specs are the manufacturer's claims.

Release

Release date not published.

Key specifications

Total output Total outputThe most power the charger can deliver across all ports combined. It is not what each port gets when several are in use.Read the Total output guide
70W
Strongest single port Single-port outputThe most one port can deliver when it is the only thing plugged in. For laptops, this is often the number that matters.Read the Single-port output guide
70W
Port C1
USB-C, up to 70W alone
Port C2
USB-C, up to 70W alone
Port A1
USB-A, up to 33W alone
USB Power Delivery USB Power Delivery (PD)The common USB-C fast-charging standard. The charger and device agree on a voltage, such as 9V or 20V, before power flows.Read the USB Power Delivery (PD) guide
Not published
Output levels (USB-C)
5V⎓3A · 9V⎓3A · 15V⎓3A · 20V⎓3.5A
PPS PPSProgrammable Power Supply, part of USB PD. It lets a device request finely adjusted voltage. Some phones, including many Samsung models, need it for their fastest charging.Read the PPS guide
Not published
Other protocols
None listed
GaN GaNGallium nitride, a semiconductor material that helps chargers run efficiently in a smaller case. It describes how a charger is built, not how fast it charges.Read the GaN guide
Yes
Dimensions
53 × 42.6 × 31.5 mm
Volume
71.1 cm³ (compact)
Weight
120g
Folding plug
Yes
Plug type
Not published
Input voltage
100–240V, 50/60Hz
Model
B121A

“Not published” means no manufacturer source we checked states this value. It doesn't mean “no.”

Power distribution

The 70W on the box is the total. Here's what each port can deliver alone, and what the manufacturer says happens when ports share power.

  • C1USB-C · up to 70W
  • C2USB-C · up to 70W
  • A1USB-A · up to 33W
Ports in useC1C2A1Total
C1 alone70W70W
C2 alone70W70W
A1 alone33W33W
C1 + C2145W22.5W67.5W
C1 + C2260W5W65W
C1 + A1345W22.5W67.5W
C1 + A1460W5W65W
C2 + A1545W22.5W67.5W
C2 + A1660W5W65W
C1 + C2 + A1745W7.5W7.5W60W
  1. Anker: “USB-C1 + USB-C2: 45W + 22.5W or 60W + 5W.”
  2. Applies in Anker's alternate 60W + 5W mode, when one device draws very little. Alternate mode from the same line. Anker doesn't state when it applies.
  3. Anker: “USB-C1 / C2 + A1: 45W + 22.5W or 60W + 5W.”
  4. Applies in Anker's alternate 60W + 5W mode, when one device draws very little. Alternate mode; trigger not published.
  5. Anker: “USB-C1 / C2 + A1: 45W + 22.5W or 60W + 5W.”
  6. Applies in Anker's alternate 60W + 5W mode, when one device draws very little. Alternate mode; trigger not published.
  7. Anker: “USB-C1 + USB-C2 + USB-A1: 45W + 7.5W + 7.5W.”

Device suitability

  • Laptop: light (~30W)Likely fit
    up to 70W available from a single port (you need ~30W).
  • Laptop: standard (~65W)Likely fit
    up to 70W available from a single port (you need ~65W).
  • Laptop: performance (~100W)Works, but slower
    the strongest suitable port is rated 70W, below the ~100W you selected. It should still charge, just more slowly.
  • Laptop: maximum (~140W)Works, but slower
    the strongest suitable port is rated 70W, below the ~140W you selected. It should still charge, just more slowly.
  • Phone: typical (~20W)Likely fit
    up to 70W available from a single port (you need ~20W).
  • Phone: fast (pps) (~45W)Needs verification
    power is sufficient, but we couldn't verify PPS support, so we can't confirm its fastest charging.
  • Tablet: typical (~20W)Likely fit
    up to 70W available from a single port (you need ~20W).
  • Tablet: fast (~35W)Likely fit
    up to 70W available from a single port (you need ~35W).
  • Smartwatch: typical (~5W)Likely fit
    up to 70W available from a single port (you need ~5W).

Editor's notes

  • Laptops up to ~70W alone; 45W when sharing.
  • Laptop plus phone: 45W + 22.5W.
  • Three devices: 45W + 7.5W + 7.5W, fine for a watch or earbuds, slow for a phone.

Based on published specifications and typical power needs for each device type, one device at a time. It isn't a guarantee for a specific model, so check your device's own charging specs.

Catalogued devices

Charges 4 more catalogued devices, but more slowly than their makers' figures.

Check a multi-device setup in the finder

Strengths and trade-offs

Strengths

  • 70W from either USB-C port alone
  • Light for a three-port charger at 120g, with a foldable plug
  • Published split for every port combination

Trade-offs

  • Laptop gets 45W while sharing
  • Second and third devices get only 7.5W each with all three ports in use
  • PD and PPS aren't named on Anker's page

Editorial analysis based on the published specifications listed below.

Alternatives

Compare these chargers

References

Evidence notes

  • Anker lists the model as B121A, a listing that includes a USB-C cable; the charger-only model number may differ.
  • Two-port outputs are published as “X + Y” without explicit port labels; we map them in the published order.
  • The foldable plug is stated in a feature heading (“Compact and Foldable”), not the specification table.
  • Anker doesn't name USB Power Delivery or PPS on this page.
  • We couldn't check the UL and Intertek certification databases automatically on 2026-10-24; a manual check is still to do.
  • No FCC ID is stated on Anker's pages we read.
  • No CPSC recall found for this model (checked 2026-10-24 via saferproducts.gov).

Manufacturer-stated specifications, checked on October 23, 2026. We haven't tested this charger ourselves. Specifications can change between product revisions; see how we verify data.