What are the differences between the U Data Roam passes?

Pass	U Data Roam 10 (“UDR 10”)
Charge	RM10/24 hours 24-hour validity upon activation, which will be stated in the confirmation SMS and the MyUMobile App.
Roaming Data Allocation	Unlimited internet data usage with unrestricted high-speed access for the first 500MB; however, once you surpass the 500MB limit, the internet speed will be reduced to a maximum of 64Kbps.
Pass Eligibility	One (1) pass per one (1) eligible country.
Purchase Method	UDR 10 will be automatically activated for you if we detect that you are in an eligible country and are using data without subscribing to either UDR 10 Booster or UDR 36 Booster.
Countries and Operators	Please refer to https://www.u.com.my/en/personal/mobile-plans/roaming-idd/roaming#other-plans

Pass	U Data Roam 36 (“UDR 36”)
Charge	RM9 for every 1MB, with a maximum charge of RM36/24 hours 24-hour validity upon activation, which will be stated in the confirmation SMS and the MyUMobile App.
Roaming Data Allocation	Unlimited internet data usage with unrestricted high-speed access for the first 500MB; however, once you surpass the 500MB limit, the internet speed will be reduced to a maximum of 64Kbps
Pass Eligibility	One (1) pass per one (1) eligible country.
Purchase Method	UDR 36 will be automatically activated for you if we detect that you are in an eligible country and are using data without subscribing to either UDR 10 Booster or UDR 36 Booster.
Countries and Operators	Please refer to https://www.u.com.my/en/personal/mobile-plans/roaming-idd/roaming#other-plans

Pass	U Data Roam 10 Booster (“UDR 10 Booster”)
Charge	RM10/24 hours 24-hour validity upon activation, which will be stated in the confirmation SMS and the MyUMobile App.
Roaming Data Allocation	Unlimited internet data usage with unrestricted high-speed access for the first 500MB; however, once you surpass the 500MB limit, the internet speed will be reduced to a maximum of 512Kbps.
Pass Eligibility	One (1) pass per one (1) eligible country.
Purchase Method	Self-subscription via MyUMobile App or UMB *118#
Countries and Operators	Please refer to https://www.u.com.my/en/personal/mobile-plans/roaming-idd/roaming#other-plans

Pass	U Data Roam 36 Booster (“UDR 36 Booster”)
Charge	RM36/24 hours 24-hour validity upon activation, which will be stated in the confirmation SMS and the MyUMobile App.
Roaming Data Allocation	Unlimited internet data usage with unrestricted high-speed access for the first 500MB; however, once you surpass the 500MB limit, the internet speed will be reduced to a maximum of 512Kbps.
Pass Eligibility	One (1) pass per one (1) eligible country.
Purchase Method	Self-subscription via MyUMobile App or UMB *118#.
Countries and Operators	Please refer to https://www.u.com.my/en/personal/mobile-plans/roaming-idd/roaming#other-plans