MEPS SZ1408

What it pulls

MEPS’s own bench test, one line per prop. Drag across the chart to move the throttle; the model above follows.

What you get for $14.90

• 592 g on 4S

  On MEPS's 16.8 V bench the 2800KV pulls 592 g at full throttle with an HQ4023-3, drawing 15 A.

  Source: MEPS 2800KV data test

• 16 g with leads

  Both KVs weigh 16 g including 150 mm leads.

  Source: MEPS spec table

• Two KVs, two styles

  MEPS tunes the 2800KV for smooth, linear cinematic flying and the 3950KV for fast throttle response in racing and toothpick builds.

  Source: MEPS product page

• Two colours

  Black grey or red grey.

  Source: MEPS product page

What to pair it with

Our reading of MEPS’s numbers, so your build matches what the motor was tested with.

ESC

MEPS's peak currents are 15.0 A (2800KV) and 19.3 A (3950KV); its parts list names 35–45 A AIO boards such as T-Hobby's F7 35A/45A and GEPRC's F722 45A. (MEPS spec table, MEPS product page)

Props

MEPS tested HQ3520-3 and HQ4023-3 three-blade props; the HQ4023-3 pulls 100–115 g more at full throttle. Its parts list names HQProp 3 × 4 × 3 props. (MEPS 2800KV data test, MEPS 3950KV data test, MEPS product page)

Battery

MEPS's spec table rates the 2800KV for 6S and the 3950KV for 4S; its buying guide recommends 4S for both, and it tested the 2800KV at 16.8 V and the 3950KV at 12.6 V. (MEPS spec table, MEPS product page, MEPS 2800KV data test, MEPS 3950KV data test)

Frame

Four M2 screws on a 12 mm circle (12 × 12 mm); M2×6 and M2×7 screws come in the box. (MEPS size chart, MEPS package list)

Where to buy

• MEPSthe maker's store; $59.60 for four in either KV
  $14.90seen Oct 19, 2026
  Visit

Plain links, not affiliate links. Prices change; the store’s page has the current one.

Full specs

Bench data

Redrawn from MEPS’s test reports. Thrust is static pull on a bench, more than you get in flight. Power is volts × amps; efficiency is thrust divided by power.

Inside the motor

A brushless outrunner: the coils stand still in the middle and the magnets spin around them. From the top down:

• Shaft. 5 mm, M5 × 0.8 thread 8.5 mm long, protrudes 12.45 mm above the bell (the shaft diameter is also in the spec table (S2)). (MEPS size chart)
• Bell. CNC-machined aluminium. (MEPS product page)
• Stator. The coils are wound on a stack of thin steel laminations: 14 × 8 mm (1408) (from the model's 1408 size code; the page gives no other stator figures). (MEPS product page)
• Base. 4 × M2 holes on a 12 mm circle. (MEPS size chart)

How fast it spins

KV is the motor’s no-load speed per volt. With nothing on the shaft, the 2800KV version reaches about these speeds; a prop loads the motor and brings it down, typically to around 70–75% of these figures at full throttle.

A 14-pole rotor has 7 pole pairs, so every turn of the shaft is 7 electrical cycles, and a six-step ESC switches the phases 42 times per turn.

About the 3D model

A generic outrunner drawn from MEPS’s published sizes: the 14 × 8 mm stator, 18.97 mm bell, 16.71 mm height, 5 mm shaft, 12 mm mounting circle and 9 teeth and 14 magnets. Anything MEPS doesn’t publish is typical for a motor this size, and the bell’s spoked top, the base and the inside are a generic design, not this motor’s. The colours are read off the maker’s product photos. There are no logos or markings: it is our drawing, not the maker’s.

Sources

1. MEPS: SZ1408 FPV motor 2800KV/3950KV for 3–4″ freestyle and micro drones (product page with buying guide, MEPS's own store). Retrieved Oct 19, 2026.
2. MEPS: SZ1408 parameter table for 2800KV and 3950KV (image on the product page). Retrieved Oct 19, 2026.
3. MEPS: SZ1408 size chart (image on the product page). Retrieved Oct 19, 2026.
4. MEPS: SZ1408 KV2800 data test, 10–100% throttle with HQ3520-3 and HQ4023-3 props at 16.8 V (image on the product page). Retrieved Oct 19, 2026.
5. MEPS: SZ1408 data test labelled "KV3800", 10–100% throttle with HQ3520-3 and HQ4023-3 props at 12.6 V (image on the product page; its full-throttle HQ4023-3 row is the spec table's 3950KV peak current and max power). Retrieved Oct 19, 2026.
6. MEPS: SZ1408 package list (image on the product page). Retrieved Oct 19, 2026.
7. MEPS: SZ1408 2800KV black grey, main product photo, used for finish. Retrieved Oct 19, 2026.