Antenna form onboard PCB antenna, SPI, Size 27*40.5*4.5(±0.2)mm, Module model ESP32-CAM, Wi-Fi 802.11 b/g/n/e/i, I2C, Serial port rate default 115200 bps, gain 2dBi, GRAYSCALE, BMP, Package DIP-16, Support interface UART, SPI Flash default 32Mbit, RAM internal520KB+external 4M PSRAM, Image output format JPEG (only supported by OV2640), IO port 9, PWM, Spectrum range 2412 ~ 2484MHz, bluetooth bluetooth4.2BR/EDR and BLE standards, Support TF card Maximum support 4G.
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Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($16.91): BG00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): BGmodule12, BGgeek11%, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGCAM234, BgoFErTaSchInA10, BGELIG0920, BGGeeK13, BgcLuBofErtA10, BGESP111, BGESP222, BGRUMB15, BGCuponation10, 13f142, BGHONEY2110, 00c906, ADMITAD2212, 2022ACTIESNL, 8Couponsde, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, BGJUNEGSG9, TTSUMMER8, Cuponation9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Geekcreit ESP32-CAM WiFi Bluetooth Camera Module ($-3)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $8.51.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).