diff --git a/src/Rocketeer/Abstracts/AbstractBinary.php b/src/Rocketeer/Abstracts/AbstractBinary.php
index 36f7e8235..849e1bb36 100644
--- a/src/Rocketeer/Abstracts/AbstractBinary.php
+++ b/src/Rocketeer/Abstracts/AbstractBinary.php
@@ -177,7 +177,7 @@ protected function buildOptions($flags)
 
         // Flip array if necessary
         $firstKey = Arr::get(array_keys($flags), 0);
-        if (!is_null($firstKey) && is_int($firstKey)) {
+        if ($firstKey !== null && is_int($firstKey)) {
             $flags = array_combine(
                 array_values($flags),
                 array_fill(0, count($flags), null)
@@ -186,9 +186,18 @@ protected function buildOptions($flags)
 
         // Build flags
         foreach ($flags as $flag => $value) {
-            $options[] = $value ? $flag.'="'.$value.'"' : $flag;
+            if (is_array($value)) {
+                foreach ($value as $v) {
+                    $options[] = $flag.'="'.$v.'"';
+                }
+            } else {
+                if (is_numeric($flag)) {
+                    $flag  = $value;
+                    $value = null;
+                }
+                $options[] = $value ? $flag.'="'.$value.'"' : $flag;
+            }
         }
-
         return implode(' ', $options);
     }
 
@@ -203,7 +212,6 @@ protected function buildArguments($arguments)
             $arguments = (array) $arguments;
             $arguments = implode(' ', $arguments);
         }
-
         return $arguments;
     }
 
diff --git a/src/Rocketeer/Strategies/Deploy/SyncStrategy.php b/src/Rocketeer/Strategies/Deploy/SyncStrategy.php
index 8fb067164..ff02da286 100644
--- a/src/Rocketeer/Strategies/Deploy/SyncStrategy.php
+++ b/src/Rocketeer/Strategies/Deploy/SyncStrategy.php
@@ -9,6 +9,7 @@
  */
 namespace Rocketeer\Strategies\Deploy;
 
+use Illuminate\Support\Arr;
 use Rocketeer\Abstracts\Strategies\AbstractStrategy;
 use Rocketeer\Bash;
 use Rocketeer\Interfaces\Strategies\DeployStrategyInterface;
@@ -20,6 +21,11 @@ class SyncStrategy extends AbstractStrategy implements DeployStrategyInterface
      */
     protected $description = 'Uses rsync to create or update a release from the local files';
 
+    /**
+     * @type integer
+     */
+    protected $port;
+
     /**
      * Deploy a new clean copy of the application.
      *
@@ -63,25 +69,75 @@ public function update($reset = true)
     protected function rsyncTo($destination)
     {
         // Build host handle
-        $credentials = $this->connections->getServerCredentials();
-        $handle      = array_get($credentials, 'host');
+        $arguments = [];
+        $handle    = $this->getSyncHandle();
+
+        // Create options
+        $options = ['--verbose' => null, '--recursive' => null, '--rsh' => 'ssh', '--compress' => null];
+
+        // Create SSH command
+        $options['--rsh'] = $this->getTransport();
+
+        // Build arguments
+        $arguments[] = './';
+        $arguments[] = $handle.':'.$destination;
+
+        // Set excluded files and folders
+        $options['--exclude'] = ['.git', 'vendor'];
+
+        // Create binary and command
+        $rsync   = $this->binary('rsync');
+        $command = $rsync->getCommand(null, $arguments, $options);
+
+        return $this->bash->onLocal(function (Bash $bash) use ($command) {
+            return $bash->run($command);
+        });
+    }
+
+    /**
+     * Get the handle to connect with.
+     *
+     * @return string
+     */
+    protected function getSyncHandle()
+    {
+        $credentials    = $this->connections->getServerCredentials();
+        $handle         = array_get($credentials, 'host');
+        $explodedHandle = explode(':', $handle);
+
+        // Extract port
+        if (count($explodedHandle) === 2) {
+            $this->port = $explodedHandle[1];
+            $handle     = $explodedHandle[0];
+        }
+
+        // Add username
         if ($user = array_get($credentials, 'username')) {
             $handle = $user.'@'.$handle;
         }
 
-        // Create options
-        $options  = '--verbose --recursive --rsh="ssh"';
-        $excludes = ['.git', 'vendor'];
-        foreach ($excludes as $exclude) {
-            $options .= ' --exclude="'.$exclude.'"';
+        return $handle;
+    }
+
+    /**
+     * @return string
+     */
+    protected function getTransport()
+    {
+        $ssh = 'ssh';
+
+        // Get port
+        if ($port = $this->getOption('port', true) ?: $this->port) {
+            $ssh .= ' -p '.$port;
         }
 
-        // Create binary and command
-        $rsync = $this->binary('rsync');
-        $rsync = $rsync->getCommand(null, ['./', $handle.':'.$destination], $options);
+        // Get key
+        $key = $this->connections->getServerCredentials();
+        $key = Arr::get($key, 'key');
+        if ($key) {
+            $ssh .= ' -i '.$key;
+        }
 
-        return $this->bash->onLocal(function (Bash $bash) use ($rsync) {
-            return $bash->run($rsync);
-        });
+        return $ssh;
     }
 }
diff --git a/tests/Strategies/Deploy/SyncStrategyTest.php b/tests/Strategies/Deploy/SyncStrategyTest.php
index 5cfeac7b4..f05d4489a 100644
--- a/tests/Strategies/Deploy/SyncStrategyTest.php
+++ b/tests/Strategies/Deploy/SyncStrategyTest.php
@@ -36,7 +36,7 @@ public function testCanDeployRepository()
 
         $matcher = [
             'mkdir {server}/releases/{release}',
-            'rsync ./ foo@bar.com:{server}/releases/{release} --verbose --recursive --rsh="ssh" --exclude=".git" --exclude="vendor"',
+            'rsync ./ foo@bar.com:{server}/releases/{release} --verbose --recursive --rsh="ssh" --compress --exclude=".git" --exclude="vendor"',
         ];
 
         $this->assertHistory($matcher);
@@ -48,7 +48,30 @@ public function testCanUpdateRepository()
         $task->getStrategy('Deploy', 'Sync')->update();
 
         $matcher = [
-            'rsync ./ foo@bar.com:{server}/releases/{release} --verbose --recursive --rsh="ssh" --exclude=".git" --exclude="vendor"',
+            'rsync ./ foo@bar.com:{server}/releases/{release} --verbose --recursive --rsh="ssh" --compress --exclude=".git" --exclude="vendor"',
+        ];
+
+        $this->assertHistory($matcher);
+    }
+
+    public function testCanSpecifyKey()
+    {
+        $this->swapConfig(array(
+            'rocketeer::connections' => array(
+                'production' => array(
+                    'username' => 'foo',
+                    'host'     => 'bar.com:80',
+                    'key'      => '/foo/bar',
+                ),
+            ),
+        ));
+
+        $task = $this->pretendTask('Deploy');
+        $task->getStrategy('Deploy', 'Sync')->deploy();
+
+        $matcher = [
+            'mkdir {server}/releases/{release}',
+            'rsync ./ foo@bar.com:{server}/releases/{release} --verbose --recursive --rsh="ssh -p 80 -i /foo/bar" --compress --exclude=".git" --exclude="vendor"',
         ];
 
         $this->assertHistory($matcher);