Recommended models: AC18A, AC30C
 
Roma belongs to 7000 cats, 7000 cats is a group company dedicated to 3C digital products, in addition to Romas, it also has Mr. Lei (Mr. Lei), Shengyan (senyeek), LikkPower (LikkPower) multiple sub-brands, so in addition to the sub-brand LOGO, the product may also be printed with the words "7000 cats produced", which is normal, not fake.
 
Roma is a smart power supply brand under 700cat, and its products cover three categories: mobile power supply, car charger and adapter. Mr. Xiaolei focuses on digital peripheral products such as protection and tempered film for computers and mobile phones, Shengyan is responsible for audio products including headphones, speakers, wireless speakers, headsets, etc., and Likepool is a manufacturer of notebook batteries.
 
7000 Cat originally started with the production of notebook batteries, but at present, it is the most well-known sub-brand of Roam, and it is the core business of the current group, especially the most outstanding mobile power products, Romax HOLO and Noah Series mobile power banks have won the 2018 German IF Design Award.
 
Compared with Pinsheng, which also takes battery module products such as mobile power supply as its core business, Roma is more like an e-commerce company, only responsible for design and sales, and is not directly involved in production, all of which are responsible for the foundry, while Pinsheng is actually a manufacturing company, and its subordinate companies undertake the design, production, promotion and publicity of the entire industrial chain.
 
Roma charger is inferior to the mobile power supply, although there are a lot of products, but most of them are conventional non-fast chargers, fast charging is all single port, no multi-port fast charging, so the choice is relatively limited, it is more recommended only Roma AC18A, Roma AC30C two.
 
The name of the Romax charger is very easy to understand, AC18A is the AC plug of the 18W USB-A port charger, in fact, there are no highlights in terms of specifications, it is the general QC 3.0 fast charging, compatible with QC 2.0 and MTK PE fast charging protocol. The price of AC18A is less than 30 yuan, which is cheaper than Greenlink, which has always been known for its low price, and only half of the Pinsheng specification products, which may also be one of the cheapest third-party QC 3.0 fast chargers on the market.
 
AC30C is a single Type-C interface PD3.0 fast charging, maximum power 30W, support 5V/3A, 9V/3A, 12V/2.5A, 15V/2A four gears, in addition to PD, but also compatible with QC2.0 and QC3.0, although the product is mainly for charging laptops, but for mobile phones and tablets that support PD/QC fast charging, it is also possible, iPhone X and later models can turn on the fast charging function. From the dismantling point of view,PDThe protocol chip comes from the domestic manufacturer Sheng Tingwei,It has passed the USB-IF certification,Compatibility is not a problem,79The price is between Greenlink CD127 and RAVPower RP-PC017。