diff --git a/radio/src/targets/horus/usbd_storage_msd.cpp b/radio/src/targets/horus/usbd_storage_msd.cpp
index 14113f1ec..bd9b190a1 100644
--- a/radio/src/targets/horus/usbd_storage_msd.cpp
+++ b/radio/src/targets/horus/usbd_storage_msd.cpp
@@ -175,23 +175,10 @@ int8_t STORAGE_Read (uint8_t lun,
                  uint32_t blk_addr,                       
                  uint16_t blk_len)
 {
-
-  for (int retry=0; retry<3; retry++) {
-    if (SD_ReadMultiBlocks(buf, blk_addr, BLOCKSIZE, blk_len) != 0) {
-      continue;
-    }
-
-    SDTransferState State;
-
-    SD_Error Status = SD_WaitReadOperation(); // Check if the Transfer is finished
-
-    while((State = SD_GetStatus()) == SD_TRANSFER_BUSY); // BUSY, OK (DONE), ERROR (FAIL)
-
-    if ((State == SD_TRANSFER_OK) && (Status == SD_OK)) {
-      return 0;
-    }
-  }
-  return -1;
+  if (disk_read(0, buf, blk_addr, blk_len) == RES_OK)
+    return 0;
+  else
+    return -1;
 }
 /**
   * @brief  Write data to the medium
@@ -207,19 +194,10 @@ int8_t STORAGE_Write (uint8_t lun,
                   uint32_t blk_addr,
                   uint16_t blk_len)
 {
-  if (SD_WriteMultiBlocks(buf, blk_addr, BLOCKSIZE, blk_len) != 0)
+  if (disk_write(0, buf, blk_addr, blk_len) == RES_OK)
+    return 0;
+  else
     return -1;
-
-  SDTransferState State;
-
-  SD_Error Status = SD_WaitWriteOperation(); // Check if the Transfer is finished
-
-  while((State = SD_GetStatus()) == SD_TRANSFER_BUSY); // BUSY, OK (DONE), ERROR (FAIL)
-
-  if ((State == SD_TRANSFER_ERROR) || (Status != SD_OK))
-    return -1;
-
-  return 0;
 }
 
 /**