Samsung 2A, Adaptive Fast Charging (AFC), Super Fast Charging (SFC)
Samsung implement 4 types of fast charging protocols: Samsung 2A, AFC, SFC, SFC 2.0.
Charging protocols:
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Samsung 2A. 5V2A - 10W. Later was incorporated into the AFC protocol
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AFC is a proprietary fast-charging technology developed by Samsung for its smartphones and tablets. Samsung's AFC is based on Qualcomm Quick Charge 2.0 and knows when to stop the charging process to extend battery life. AFC can deliver (5V2A, 9V/1.67A, 9V2A, 12V2A) up to 24Watts of power. However, Samsung devices compatible with AFC also work with QC2.0 protocol. AFC protocol chargers usually work with UsbA-MicroUSB (5V2A) or UsbA-UsbC (5V2A, 9V/1.67A, 9V2A, 12V2A). For example, the official Samsung EP-TA300 charger supports 12V2A via AFC protocol.
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SFC (Super Fast Charging) is based on PD PPS with a peak power of 25W(PD fixed voltage 9V/2.77A, PPS: 3.0 A(3.3-5.9 V) or 2.25 A(3.3-11.0 V)). SFC protocol requires a certified charger (or PPS support) and uses a standard UsbC-UsbC cable.
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SFC 2.0 supports 45W peak charging (PD fixed voltage: (9/15V)3A, 20V/2.25A, PPS: 4.5A(3.3-11.0 V), 2.8A(3.3-16.0 V), 2.1 A(3.3-21.0 V)) with 5A UsbC-UsbC rated cable with e-maker chip (at least 100W nominal). SFC2.0 protocol requires certified charger or a device supporting PPS with the corresponding voltage range and maximum current.
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For S25 series smartphones (Plus and Ultra), SFC2.0 45W is also activated for PPS 15V3A.
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The One UI 8.5 firmware for future Samsung S26 smartphones series suggests the presence of Super Fast Charging 3.0 technology. There is speculation that at least the S26 Ultra version will offer charging at up to 60W.
Notes:
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Together with SFC, Samsung smartphones support PD PPS charging protocol.
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Sometimes SFC protocol is called SSFC which stands for Samsung Super Fast Charging.
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Tablet Samsung Galaxy Tab S7+ supports SFC2.0 (PPS 11V5A) - 45W
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Tablets Samsung Galaxy Tab S8 series support SFC2.0 (PPS 11V5A) - 45W. Real charging speed for Tab S8 is up to 34W, it also support charging using PD fixed 9V with real charging speed up to 14W.
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Tablet Samsung Galaxy Tab S10 FE+ supports the SFC2.0 (PPS 11V5A) protocol - 45W. There is no reliable confirmation of PPS 15V3A support.
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Smartphone Samsung Galaxy A56 supports SFC (PPS) (up to 9.6V3.8A) - 34W max, most often - 27W including from original chargers. It also supports fixed PD protocol: (5V3A, 9V3A) up to 14W.
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Smartphone Samsung Galaxy Note 10 Plus supports SFC2.0 (PPS 11V5A) - 45W
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Smartphone Samsung Galaxy S20 Ultra supports SFC2.0 (PPS 11V5A) - 45W
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Smartphone Samsung Galaxy S21 Ultra supports SFC - 25W
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The base versions of the Samsung Galaxy S22, S23, S24, and S25 smartphones support a maximum power of 25W for wired connections and 15W for wireless connections.
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The Samsung Galaxy S22, S23, S24, and S25 smartphones in the Plus and Ultra versions support a maximum power of 45W for wired connections and 15W for wireless connections. However, to activate 45W, the S22, S23, S24, S25 models (Plus/Ultra) require PPS/SFC2.0 mode supporting 10V4.5A (China Quality Certification Center (CQC) specifies 11V4.05A) and a cable supporting 5A (100W/240W). The S25 Plus/Ultra series smartphones also can be charged using different PPS operating mode up to 16V3A, which on reduces the cable requirements - 3A (i.e., any USB-C to USB-C cable), but the charger must support this PPS operating mode.
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The Samsung Galaxy S25 FE smartphone supports 45W charging, but it is not yet known on which PPS/SFC2.0 voltage range. Most likely, 45W is achieved under the same conditions as for the S25 Plus/Ultra - PPS up to 16V3A.
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Samsung Galaxy Z Fold6, Fold7, Z Flip7, and Z Flip7 FE smartphones only support up to SFC 25W (9V2.77A)
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Samsung Galaxy S26 Ultra (SM-S9480) supports 60W PPS (SFC 2.0) charging and next charging modes: 5V2A, 9V1.67A, 9V2.77A, 10V4.5A, 15V3A, 20V3A
Additional information:
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Fast charging protocols and cable detection supported by USB testers
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USB power adapters(chargers) review and testing