两者都有microSD存储卡插槽，但Centro在外部而500v是电池下方。
Both have microSD memory card slots, but the Centro's is external the 500v's is under the battery.
In2Pay解决方案可通过一个小的MicroSD卡工作，把MicroSD卡插在手记的存储卡插槽内即可使用手机支付服务。
The In2Pay solution works by way of a small microSD card that's inserted into a phone's memory slot to enable the device for mobile payments.
In2Pay解决方案可通过一个小的MicroSD卡工作，把MicroSD卡插在手记的存储卡插槽内即可使用手机支付服务。
The In2Pay solution works by way of a small microSD card that's inserted into a phone's memory slot to enable the device for mobile payments.
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